56820747504 has 80 divisors (see below), whose sum is σ = 157969487520. Its totient is φ = 17533870080.

The previous prime is 56820747493. The next prime is 56820747517. The reversal of 56820747504 is 40574702865.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 520989 + ... + 620540.

It is an arithmetic number, because the mean of its divisors is an integer number (1974618594).

Almost surely, 2^56820747504 is an apocalyptic number.

It is an amenable number.

56820747504 is an abundant number, since it is smaller than the sum of its proper divisors (101148740016).

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

56820747504 is a wasteful number, since it uses less digits than its factorization.

56820747504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141618 (or 1141612 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 56820747504 in words is "fifty-six billion, eight hundred twenty million, seven hundred forty-seven thousand, five hundred four".