57023020 has 12 divisors (see below), whose sum is σ = 119748384. Its totient is φ = 22809200.

The previous prime is 57022993. The next prime is 57023039. The reversal of 57023020 is 2032075.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1425556 + ... + 1425595.

It is an arithmetic number, because the mean of its divisors is an integer number (9979032).

Almost surely, 2^57023020 is an apocalyptic number.

It is an amenable number.

57023020 is an abundant number, since it is smaller than the sum of its proper divisors (62725364).

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

57023020 is a wasteful number, since it uses less digits than its factorization.

57023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851160 (or 2851158 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 57023020 is about 7551.3588181201. The cubic root of 57023020 is about 384.9019146320.

Adding to 57023020 its reverse (2032075), we get a palindrome (59055095).

The spelling of 57023020 in words is "fifty-seven million, twenty-three thousand, twenty".