57020525 has 12 divisors (see below), whose sum is σ = 73144500. Its totient is φ = 44042880.

The previous prime is 57020507. The next prime is 57020531. The reversal of 57020525 is 52502075.

It can be written as a sum of positive squares in 6 ways, for example, as 3759721 + 53260804 = 1939^2 + 7298^2 .

It is not a de Polignac number, because 57020525 - 2⁸ = 57020269 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57020494 and 57020503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38600 + ... + 40049.

It is an arithmetic number, because the mean of its divisors is an integer number (6095375).

Almost surely, 2^57020525 is an apocalyptic number.

It is an amenable number.

57020525 is a deficient number, since it is larger than the sum of its proper divisors (16123975).

57020525 is a wasteful number, since it uses less digits than its factorization.

57020525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78688 (or 78683 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 57020525 is about 7551.1936142573. The cubic root of 57020525 is about 384.8963008507.

The spelling of 57020525 in words is "fifty-seven million, twenty thousand, five hundred twenty-five".