57533316 has 12 divisors (see below), whose sum is σ = 134244432. Its totient is φ = 19177768.

The previous prime is 57533293. The next prime is 57533317. The reversal of 57533316 is 61333575.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (57533317) 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, 2397210 + ... + 2397233.

It is an arithmetic number, because the mean of its divisors is an integer number (11187036).

Almost surely, 2^57533316 is an apocalyptic number.

It is an amenable number.

57533316 is an abundant number, since it is smaller than the sum of its proper divisors (76711116).

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

57533316 is a wasteful number, since it uses less digits than its factorization.

57533316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794450 (or 4794448 counting only the distinct ones).

The product of its digits is 28350, while the sum is 33.

The square root of 57533316 is about 7585.0719179188. The cubic root of 57533316 is about 386.0466622784.

The spelling of 57533316 in words is "fifty-seven million, five hundred thirty-three thousand, three hundred sixteen".