57118218 has 16 divisors (see below), whose sum is σ = 120249120. Its totient is φ = 18037296.

The previous prime is 57118211. The next prime is 57118241. The reversal of 57118218 is 81281175.

57118218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57118211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250405 + ... + 250632.

It is an arithmetic number, because the mean of its divisors is an integer number (7515570).

Almost surely, 2^57118218 is an apocalyptic number.

57118218 is an abundant number, since it is smaller than the sum of its proper divisors (63130902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57118218 is a wasteful number, since it uses less digits than its factorization.

57118218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501061.

The product of its digits is 4480, while the sum is 33.

The square root of 57118218 is about 7557.6595583554. The cubic root of 57118218 is about 385.1159891149.

The spelling of 57118218 in words is "fifty-seven million, one hundred eighteen thousand, two hundred eighteen".