57722166 has 32 divisors (see below), whose sum is σ = 129139200. Its totient is φ = 19110600.

The previous prime is 57722143. The next prime is 57722233. The reversal of 57722166 is 66122775.

57722166 is a `hidden beast` number, since 577 + 2 + 21 + 66 = 666.

57722166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57722166.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4615 + ... + 11693.

It is an arithmetic number, because the mean of its divisors is an integer number (4035600).

Almost surely, 2^57722166 is an apocalyptic number.

57722166 is an abundant number, since it is smaller than the sum of its proper divisors (71417034).

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

57722166 is a wasteful number, since it uses less digits than its factorization.

57722166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241 (or 7235 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 57722166 is about 7597.5105133195. The cubic root of 57722166 is about 386.4685933934.

The spelling of 57722166 in words is "fifty-seven million, seven hundred twenty-two thousand, one hundred sixty-six".