56556705844 has 12 divisors (see below), whose sum is σ = 102387140100. Its totient is φ = 27303237248.

The previous prime is 56556705827. The next prime is 56556705857. The reversal of 56556705844 is 44850765565.

It can be written as a sum of positive squares in 2 ways, for example, as 10284393744 + 46272312100 = 101412^2 + 215110^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243778789 + ... + 243779020.

It is an arithmetic number, because the mean of its divisors is an integer number (8532261675).

Almost surely, 2^56556705844 is an apocalyptic number.

It is an amenable number.

56556705844 is a deficient number, since it is larger than the sum of its proper divisors (45830434256).

56556705844 is a wasteful number, since it uses less digits than its factorization.

56556705844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487557842 (or 487557840 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 55.

The spelling of 56556705844 in words is "fifty-six billion, five hundred fifty-six million, seven hundred five thousand, eight hundred forty-four".