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55433025001 = 71780746831
BaseRepresentation
bin110011101000000100…
…001101010111101001
312022002020000102211001
4303220010031113221
51402011323300001
641244322035001
74001452636534
oct635004152751
9168066012731
1055433025001
1121566552162
12a8b04a8a61
1352c5533a13
14297c111a1b
151696835001
hexce810d5e9

55433025001 has 4 divisors (see below), whose sum is σ = 56213771904. Its totient is φ = 54652278100.

The previous prime is 55433024971. The next prime is 55433025083. The reversal of 55433025001 is 10052033455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10052033455 = 52010406691.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55433025001 is a prime.

It is a super-2 number, since 2×554330250012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55433025091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390373345 + ... + 390373486.

It is an arithmetic number, because the mean of its divisors is an integer number (14053442976).

Almost surely, 255433025001 is an apocalyptic number.

It is an amenable number.

55433025001 is a deficient number, since it is larger than the sum of its proper divisors (780746903).

55433025001 is an equidigital number, since it uses as much as digits as its factorization.

55433025001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780746902.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 55433025001 its reverse (10052033455), we get a palindrome (65485058456).

The spelling of 55433025001 in words is "fifty-five billion, four hundred thirty-three million, twenty-five thousand, one".

Divisors: 1 71 780746831 55433025001