57131396 has 12 divisors (see below), whose sum is σ = 114262848. Its totient is φ = 24484872.

The previous prime is 57131377. The next prime is 57131413. The reversal of 57131396 is 69313175.

57131396 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020176 + ... + 1020231.

It is an arithmetic number, because the mean of its divisors is an integer number (9521904).

Almost surely, 2^57131396 is an apocalyptic number.

It is an amenable number.

57131396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57131396 is a wasteful number, since it uses less digits than its factorization.

57131396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040418 (or 2040416 counting only the distinct ones).

The product of its digits is 17010, while the sum is 35.

The square root of 57131396 is about 7558.5313388250. The cubic root of 57131396 is about 385.1456041160.

The spelling of 57131396 in words is "fifty-seven million, one hundred thirty-one thousand, three hundred ninety-six".