57511560828 has 24 divisors (see below), whose sum is σ = 134359540560. Its totient is φ = 19146820480.

The previous prime is 57511560811. The next prime is 57511560889. The reversal of 57511560828 is 82806511575.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952363 + ... + 2971778.

It is an arithmetic number, because the mean of its divisors is an integer number (5598314190).

Almost surely, 2^57511560828 is an apocalyptic number.

It is an amenable number.

57511560828 is an abundant number, since it is smaller than the sum of its proper divisors (76847979732).

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

57511560828 is a wasteful number, since it uses less digits than its factorization.

57511560828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5924957 (or 5924955 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 48.

The spelling of 57511560828 in words is "fifty-seven billion, five hundred eleven million, five hundred sixty thousand, eight hundred twenty-eight".