57528020 has 48 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 20718720.

The previous prime is 57528001. The next prime is 57528041. The reversal of 57528020 is 2082575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22781 + ... + 25179.

It is an arithmetic number, because the mean of its divisors is an integer number (2772000).

Almost surely, 2^57528020 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 57528020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66528000).

57528020 is an abundant number, since it is smaller than the sum of its proper divisors (75527980).

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

57528020 is a wasteful number, since it uses less digits than its factorization.

57528020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 57528020 is about 7584.7228031089. The cubic root of 57528020 is about 386.0348165862.

The spelling of 57528020 in words is "fifty-seven million, five hundred twenty-eight thousand, twenty".