57222164 has 12 divisors (see below), whose sum is σ = 102467904. Its totient is φ = 27945624.

The previous prime is 57222163. The next prime is 57222173. The reversal of 57222164 is 46122275.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57222163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166172 + ... + 166515.

It is an arithmetic number, because the mean of its divisors is an integer number (8538992).

Almost surely, 2^57222164 is an apocalyptic number.

It is an amenable number.

57222164 is a deficient number, since it is larger than the sum of its proper divisors (45245740).

57222164 is a wasteful number, since it uses less digits than its factorization.

57222164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332734 (or 332732 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 57222164 is about 7564.5332969060. The cubic root of 57222164 is about 385.3494639970.

The spelling of 57222164 in words is "fifty-seven million, two hundred twenty-two thousand, one hundred sixty-four".