57133232 has 20 divisors (see below), whose sum is σ = 119211120. Its totient is φ = 26369088.

The previous prime is 57133229. The next prime is 57133249. The reversal of 57133232 is 23233175.

57133232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 137132 + ... + 137547.

It is an arithmetic number, because the mean of its divisors is an integer number (5960556).

Almost surely, 2^57133232 is an apocalyptic number.

57133232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57133232 is an abundant number, since it is smaller than the sum of its proper divisors (62077888).

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

57133232 is a wasteful number, since it uses less digits than its factorization.

57133232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274700 (or 274694 counting only the distinct ones).

The product of its digits is 3780, while the sum is 26.

The square root of 57133232 is about 7558.6527900149. The cubic root of 57133232 is about 385.1497298087.

The spelling of 57133232 in words is "fifty-seven million, one hundred thirty-three thousand, two hundred thirty-two".