55045045431 has 12 divisors (see below), whose sum is σ = 79515647640. Its totient is φ = 36693864240.

The previous prime is 55045045427. The next prime is 55045045511. The reversal of 55045045431 is 13454054055.

55045045431 is a `hidden beast` number, since 550 + 4 + 50 + 4 + 54 + 3 + 1 = 666.

It is not a de Polignac number, because 55045045431 - 2² = 55045045427 is a prime.

It is a super-2 number, since 2×55045045431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55045045031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109416 + ... + 349373.

It is an arithmetic number, because the mean of its divisors is an integer number (6626303970).

Almost surely, 2^55045045431 is an apocalyptic number.

55045045431 is a deficient number, since it is larger than the sum of its proper divisors (24470602209).

55045045431 is a wasteful number, since it uses less digits than its factorization.

55045045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472126 (or 472123 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 55045045431 its reverse (13454054055), we get a palindrome (68499099486).

The spelling of 55045045431 in words is "fifty-five billion, forty-five million, forty-five thousand, four hundred thirty-one".