57085816 has 24 divisors (see below), whose sum is σ = 111890520. Its totient is φ = 27252896.

The previous prime is 57085799. The next prime is 57085829. The reversal of 57085816 is 61858075.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102210 + ... + 102766.

It is an arithmetic number, because the mean of its divisors is an integer number (4662105).

Almost surely, 2^57085816 is an apocalyptic number.

It is an amenable number.

57085816 is a deficient number, since it is larger than the sum of its proper divisors (54804704).

57085816 is an equidigital number, since it uses as much as digits as its factorization.

57085816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 57085816 is about 7555.5156012015. The cubic root of 57085816 is about 385.0431525252.

The spelling of 57085816 in words is "fifty-seven million, eighty-five thousand, eight hundred sixteen".