56577365504 has 160 divisors (see below), whose sum is σ = 127794633120. Its totient is φ = 24798822400.

The previous prime is 56577365489. The next prime is 56577365567. The reversal of 56577365504 is 40556377565.

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, 20549792 + ... + 20552544.

It is an arithmetic number, because the mean of its divisors is an integer number (798716457).

Almost surely, 2^56577365504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56577365504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63897316560).

56577365504 is an abundant number, since it is smaller than the sum of its proper divisors (71217267616).

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

56577365504 is a wasteful number, since it uses less digits than its factorization.

56577365504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2896 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 53.

The spelling of 56577365504 in words is "fifty-six billion, five hundred seventy-seven million, three hundred sixty-five thousand, five hundred four".