56577368442 has 32 divisors (see below), whose sum is σ = 132814829952. Its totient is φ = 15728071104.

The previous prime is 56577368437. The next prime is 56577368447. The reversal of 56577368442 is 24486377565.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56577368437) and next prime (56577368447).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (56577368447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18202233 + ... + 18205340.

It is an arithmetic number, because the mean of its divisors is an integer number (4150463436).

Almost surely, 2^56577368442 is an apocalyptic number.

56577368442 is an abundant number, since it is smaller than the sum of its proper divisors (76237461510).

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

56577368442 is a wasteful number, since it uses less digits than its factorization.

56577368442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36407622.

The product of its digits is 33868800, while the sum is 57.

The spelling of 56577368442 in words is "fifty-six billion, five hundred seventy-seven million, three hundred sixty-eight thousand, four hundred forty-two".