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55433025031 = 431289140117
BaseRepresentation
bin110011101000000100…
…001101011000000111
312022002020000102212011
4303220010031120013
51402011323300111
641244322035051
74001452636606
oct635004153007
9168066012764
1055433025031
112156655218a
12a8b04a8a87
1352c5533a37
14297c111a3d
151696835021
hexce810d607

55433025031 has 4 divisors (see below), whose sum is σ = 56722165192. Its totient is φ = 54143884872.

The previous prime is 55433024971. The next prime is 55433025083. The reversal of 55433025031 is 13052033455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55433025031 - 27 = 55433024903 is a prime.

It is a super-2 number, since 2×554330250312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55433024984 and 55433025002.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644570016 + ... + 644570101.

It is an arithmetic number, because the mean of its divisors is an integer number (14180541298).

Almost surely, 255433025031 is an apocalyptic number.

55433025031 is a deficient number, since it is larger than the sum of its proper divisors (1289140161).

55433025031 is a wasteful number, since it uses less digits than its factorization.

55433025031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289140160.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 55433025031 its reverse (13052033455), we get a palindrome (68485058486).

The spelling of 55433025031 in words is "fifty-five billion, four hundred thirty-three million, twenty-five thousand, thirty-one".

Divisors: 1 43 1289140117 55433025031