57523920 has 160 divisors (see below), whose sum is σ = 197344512. Its totient is φ = 13787136.

The previous prime is 57523913. The next prime is 57523931. The reversal of 57523920 is 2932575.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93534 + ... + 94146.

Almost surely, 2^57523920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57523920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98672256).

57523920 is an abundant number, since it is smaller than the sum of its proper divisors (139820592).

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

57523920 is a wasteful number, since it uses less digits than its factorization.

57523920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 57523920 is about 7584.4525181453. The cubic root of 57523920 is about 386.0256455171.

The spelling of 57523920 in words is "fifty-seven million, five hundred twenty-three thousand, nine hundred twenty".