57522020 has 24 divisors (see below), whose sum is σ = 120947904. Its totient is φ = 22979936.

The previous prime is 57522007. The next prime is 57522041. The reversal of 57522020 is 2022575.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22529 + ... + 24951.

It is an arithmetic number, because the mean of its divisors is an integer number (5039496).

Almost surely, 2^57522020 is an apocalyptic number.

It is an amenable number.

57522020 is an abundant number, since it is smaller than the sum of its proper divisors (63425884).

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

57522020 is a wasteful number, since it uses less digits than its factorization.

57522020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 57522020 is about 7584.3272608716. The cubic root of 57522020 is about 386.0213953616.

Adding to 57522020 its reverse (2022575), we get a palindrome (59544595).

The spelling of 57522020 in words is "fifty-seven million, five hundred twenty-two thousand, twenty".