57166155 has 120 divisors (see below), whose sum is σ = 119493792. Its totient is φ = 26002944.

The previous prime is 57166099. The next prime is 57166157. The reversal of 57166155 is 55166175.

It is not a de Polignac number, because 57166155 - 2⁷ = 57166027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57166157) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2485474 + ... + 2485496.

Almost surely, 2^57166155 is an apocalyptic number.

57166155 is an abundant number, since it is smaller than the sum of its proper divisors (62327637).

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

57166155 is a wasteful number, since it uses less digits than its factorization.

57166155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 67 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 57166155 is about 7560.8303115465. The cubic root of 57166155 is about 385.2236963907.

The spelling of 57166155 in words is "fifty-seven million, one hundred sixty-six thousand, one hundred fifty-five".