57085893 has 6 divisors (see below), whose sum is σ = 82457414. Its totient is φ = 38057256.

The previous prime is 57085859. The next prime is 57085901. The reversal of 57085893 is 39858075.

It can be written as a sum of positive squares in only one way, i.e., 52751169 + 4334724 = 7263^2 + 2082^2 .

It is not a de Polignac number, because 57085893 - 2⁶ = 57085829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57085393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3171430 + ... + 3171447.

Almost surely, 2^57085893 is an apocalyptic number.

It is an amenable number.

57085893 is a deficient number, since it is larger than the sum of its proper divisors (25371521).

57085893 is a wasteful number, since it uses less digits than its factorization.

57085893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6342883 (or 6342880 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 57085893 is about 7555.5206968150. The cubic root of 57085893 is about 385.0433256465.

The spelling of 57085893 in words is "fifty-seven million, eighty-five thousand, eight hundred ninety-three".