56577554772 has 48 divisors (see below), whose sum is σ = 138306803712. Its totient is φ = 17978415840.

The previous prime is 56577554731. The next prime is 56577554777. The reversal of 56577554772 is 27745577565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56577554777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110078 + ... + 1159925.

It is an arithmetic number, because the mean of its divisors is an integer number (2881391744).

Almost surely, 2^56577554772 is an apocalyptic number.

It is an amenable number.

56577554772 is an abundant number, since it is smaller than the sum of its proper divisors (81729248940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56577554772 is a wasteful number, since it uses less digits than its factorization.

56577554772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270108 (or 2270106 counting only the distinct ones).

The product of its digits is 72030000, while the sum is 60.

The spelling of 56577554772 in words is "fifty-six billion, five hundred seventy-seven million, five hundred fifty-four thousand, seven hundred seventy-two".