56556555572 has 48 divisors (see below), whose sum is σ = 112226046912. Its totient is φ = 24711310080.

The previous prime is 56556555551. The next prime is 56556555631. The reversal of 56556555572 is 27555565565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74153 + ... + 344400.

It is an arithmetic number, because the mean of its divisors is an integer number (2338042644).

Almost surely, 2^56556555572 is an apocalyptic number.

It is an amenable number.

56556555572 is a deficient number, since it is larger than the sum of its proper divisors (55669491340).

56556555572 is a wasteful number, since it uses less digits than its factorization.

56556555572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418688 (or 418686 counting only the distinct ones).

The product of its digits is 39375000, while the sum is 56.

The spelling of 56556555572 in words is "fifty-six billion, five hundred fifty-six million, five hundred fifty-five thousand, five hundred seventy-two".