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54305311225 = 521121922232
BaseRepresentation
bin110010100100110110…
…010100100111111001
312012011122000122100011
4302210312110213321
51342204124424400
640540355141521
73631510346344
oct624466244771
9165148018304
1054305311225
1121037a29100
12a6368a48a1
1351759cb869
1428b243b45b
15162c8278ba
hexca4d949f9

54305311225 has 81 divisors (see below), whose sum is σ = 78469319439. Its totient is φ = 37248314400.

The previous prime is 54305311219. The next prime is 54305311253. The reversal of 54305311225 is 52211350345.

The square root of 54305311225 is 233035.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19549912041 + 34755399184 = 139821^2 + 186428^2 .

It is not a de Polignac number, because 54305311225 - 23 = 54305311217 is a prime.

It is a super-2 number, since 2×543053112252 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 243521464 + ... + 243521686.

Almost surely, 254305311225 is an apocalyptic number.

54305311225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54305311225 is the 233035-th square number.

54305311225 is the 116518-th centered octagonal number.

It is an amenable number.

54305311225 is a deficient number, since it is larger than the sum of its proper divisors (24164008214).

54305311225 is a wasteful number, since it uses less digits than its factorization.

54305311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 54305311225 in words is "fifty-four billion, three hundred five million, three hundred eleven thousand, two hundred twenty-five".

Divisors: 1 5 11 19 25 55 95 121 209 223 275 361 475 605 1045 1115 1805 2299 2453 3025 3971 4237 5225 5575 9025 11495 12265 19855 21185 26983 43681 46607 49729 57475 61325 80503 99275 105925 134915 218405 233035 248645 402515 512677 547019 674575 885533 944851 1092025 1165175 1243225 2012575 2563385 2735095 4427665 4724255 6017209 9740863 10393361 12816925 13675475 17952169 22138325 23621275 30086045 48704315 51966805 89760845 114326971 150430225 197473859 243521575 259834025 448804225 571634855 987369295 2172212449 2858174275 4936846475 10861062245 54305311225