57166685 has 16 divisors (see below), whose sum is σ = 71636400. Its totient is φ = 43739136.

The previous prime is 57166673. The next prime is 57166709. The reversal of 57166685 is 58666175.

It can be written as a sum of positive squares in 8 ways, for example, as 5484964 + 51681721 = 2342^2 + 7189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57166685 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13997 + ... + 17613.

It is an arithmetic number, because the mean of its divisors is an integer number (4477275).

Almost surely, 2^57166685 is an apocalyptic number.

It is an amenable number.

57166685 is a deficient number, since it is larger than the sum of its proper divisors (14469715).

57166685 is a wasteful number, since it uses less digits than its factorization.

57166685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760.

The product of its digits is 302400, while the sum is 44.

The square root of 57166685 is about 7560.8653605259. The cubic root of 57166685 is about 385.2248868849.

The spelling of 57166685 in words is "fifty-seven million, one hundred sixty-six thousand, six hundred eighty-five".