57501077656 has 32 divisors (see below), whose sum is σ = 117732589200. Its totient is φ = 26110909440.

The previous prime is 57501077611. The next prime is 57501077659. The reversal of 57501077656 is 65677010575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57501077659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235005 + ... + 412588.

Almost surely, 2^57501077656 is an apocalyptic number.

It is an amenable number.

57501077656 is an abundant number, since it is smaller than the sum of its proper divisors (60231511544).

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

57501077656 is a wasteful number, since it uses less digits than its factorization.

57501077656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648619 (or 648615 counting only the distinct ones).

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 57501077656 in words is "fifty-seven billion, five hundred one million, seventy-seven thousand, six hundred fifty-six".