57086218 has 16 divisors (see below), whose sum is σ = 98118144. Its totient is φ = 24401520.

The previous prime is 57086173. The next prime is 57086231. The reversal of 57086218 is 81268075.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423 + ... + 10693.

It is an arithmetic number, because the mean of its divisors is an integer number (6132384).

Almost surely, 2^57086218 is an apocalyptic number.

57086218 is a deficient number, since it is larger than the sum of its proper divisors (41031926).

57086218 is a wasteful number, since it uses less digits than its factorization.

57086218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10677.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 57086218 is about 7555.5422042366. The cubic root of 57086218 is about 385.0440563515.

The spelling of 57086218 in words is "fifty-seven million, eighty-six thousand, two hundred eighteen".