57085613 has 8 divisors (see below), whose sum is σ = 61615008. Its totient is φ = 52575984.

The previous prime is 57085603. The next prime is 57085619. The reversal of 57085613 is 31658075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57085613 - 2¹² = 57081517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57085619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1370 + ... + 10772.

It is an arithmetic number, because the mean of its divisors is an integer number (7701876).

Almost surely, 2^57085613 is an apocalyptic number.

It is an amenable number.

57085613 is a deficient number, since it is larger than the sum of its proper divisors (4529395).

57085613 is a wasteful number, since it uses less digits than its factorization.

57085613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9883.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 57085613 is about 7555.5021672950. The cubic root of 57085613 is about 385.0426961138.

The spelling of 57085613 in words is "fifty-seven million, eighty-five thousand, six hundred thirteen".