57321136 has 40 divisors (see below), whose sum is σ = 113832000. Its totient is φ = 27955200.

The previous prime is 57321109. The next prime is 57321149. The reversal of 57321136 is 63112375.

57321136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 127440 + ... + 127888.

It is an arithmetic number, because the mean of its divisors is an integer number (2845800).

Almost surely, 2^57321136 is an apocalyptic number.

It is an amenable number.

57321136 is a deficient number, since it is larger than the sum of its proper divisors (56510864).

57321136 is a wasteful number, since it uses less digits than its factorization.

57321136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 631 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 57321136 is about 7571.0723150687. The cubic root of 57321136 is about 385.5715040666.

The spelling of 57321136 in words is "fifty-seven million, three hundred twenty-one thousand, one hundred thirty-six".