56577540372 has 24 divisors (see below), whose sum is σ = 136566477600. Its totient is φ = 18208863456.

The previous prime is 56577540361. The next prime is 56577540373. The reversal of 56577540372 is 27304577565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56577540373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81289222 + ... + 81289917.

It is an arithmetic number, because the mean of its divisors is an integer number (5690269900).

Almost surely, 2^56577540372 is an apocalyptic number.

It is an amenable number.

56577540372 is an abundant number, since it is smaller than the sum of its proper divisors (79988937228).

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

56577540372 is a wasteful number, since it uses less digits than its factorization.

56577540372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162579175 (or 162579173 counting only the distinct ones).

The product of its (nonzero) digits is 6174000, while the sum is 51.

The spelling of 56577540372 in words is "fifty-six billion, five hundred seventy-seven million, five hundred forty thousand, three hundred seventy-two".