57573520 has 40 divisors (see below), whose sum is σ = 134384256. Its totient is φ = 22939008.

The previous prime is 57573493. The next prime is 57573521. The reversal of 57573520 is 2537575.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (57573521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21369 + ... + 23911.

Almost surely, 2^57573520 is an apocalyptic number.

It is an amenable number.

57573520 is an abundant number, since it is smaller than the sum of its proper divisors (76810736).

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

57573520 is a wasteful number, since it uses less digits than its factorization.

57573520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 57573520 is about 7587.7216606831. The cubic root of 57573520 is about 386.1365638476.

The spelling of 57573520 in words is "fifty-seven million, five hundred seventy-three thousand, five hundred twenty".