57697656 has 16 divisors (see below), whose sum is σ = 144244200. Its totient is φ = 19232544.

The previous prime is 57697597. The next prime is 57697663. The reversal of 57697656 is 65679675.

57697656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57697599 and 57697608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202011 + ... + 1202058.

Almost surely, 2^57697656 is an apocalyptic number.

It is an amenable number.

57697656 is an abundant number, since it is smaller than the sum of its proper divisors (86546544).

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

57697656 is a wasteful number, since it uses less digits than its factorization.

57697656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404078 (or 2404074 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 51.

The square root of 57697656 is about 7595.8973136819. The cubic root of 57697656 is about 386.4138848536.

The spelling of 57697656 in words is "fifty-seven million, six hundred ninety-seven thousand, six hundred fifty-six".