56558634507 has 10 divisors (see below), whose sum is σ = 84488824508. Its totient is φ = 37705756284.

The previous prime is 56558634497. The next prime is 56558634523. The reversal of 56558634507 is 70543685565.

It is a happy number.

56558634507 is a `hidden beast` number, since 5 + 6 + 5 + 586 + 3 + 4 + 50 + 7 = 666.

It is not a de Polignac number, because 56558634507 - 2¹⁵ = 56558601739 is a prime.

It is a super-2 number, since 2×56558634507² (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 (56558634527) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 349127293 + ... + 349127454.

Almost surely, 2^56558634507 is an apocalyptic number.

56558634507 is a deficient number, since it is larger than the sum of its proper divisors (27930190001).

56558634507 is an equidigital number, since it uses as much as digits as its factorization.

56558634507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698254759 (or 698254750 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 54.

The spelling of 56558634507 in words is "fifty-six billion, five hundred fifty-eight million, six hundred thirty-four thousand, five hundred seven".