57655680 has 64 divisors (see below), whose sum is σ = 183783600. Its totient is φ = 15374336.

The previous prime is 57655669. The next prime is 57655693. The reversal of 57655680 is 8655675.

It is a tau number, because it is divible by the number of its divisors (64).

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, 13095 + ... + 16934.

Almost surely, 2^57655680 is an apocalyptic number.

It is an amenable number.

57655680 is an abundant number, since it is smaller than the sum of its proper divisors (126127920).

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

57655680 is a wasteful number, since it uses less digits than its factorization.

57655680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30051 (or 30039 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 57655680 is about 7593.1337404263. The cubic root of 57655680 is about 386.3201546202.

The spelling of 57655680 in words is "fifty-seven million, six hundred fifty-five thousand, six hundred eighty".