57155164 has 12 divisors (see below), whose sum is σ = 109114488. Its totient is φ = 25979600.

The previous prime is 57155159. The next prime is 57155179. The reversal of 57155164 is 46155175.

57155164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 649447 + ... + 649534.

It is an arithmetic number, because the mean of its divisors is an integer number (9092874).

Almost surely, 2^57155164 is an apocalyptic number.

It is an amenable number.

57155164 is a deficient number, since it is larger than the sum of its proper divisors (51959324).

57155164 is a wasteful number, since it uses less digits than its factorization.

57155164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298996 (or 1298994 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 57155164 is about 7560.1034384458. The cubic root of 57155164 is about 385.1990065777.

The spelling of 57155164 in words is "fifty-seven million, one hundred fifty-five thousand, one hundred sixty-four".