57206166 has 32 divisors (see below), whose sum is σ = 117180000. Its totient is φ = 18612480.

The previous prime is 57206161. The next prime is 57206167. The reversal of 57206166 is 66160275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57206161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54010 + ... + 55058.

It is an arithmetic number, because the mean of its divisors is an integer number (3661875).

Almost surely, 2^57206166 is an apocalyptic number.

57206166 is an abundant number, since it is smaller than the sum of its proper divisors (59973834).

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

57206166 is a wasteful number, since it uses less digits than its factorization.

57206166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 57206166 is about 7563.4757882868. The cubic root of 57206166 is about 385.3135490362.

The spelling of 57206166 in words is "fifty-seven million, two hundred six thousand, one hundred sixty-six".