57020912 has 20 divisors (see below), whose sum is σ = 118976760. Its totient is φ = 26317248.

The previous prime is 57020893. The next prime is 57020923. The reversal of 57020912 is 21902075.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent 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, 136862 + ... + 137277.

It is an arithmetic number, because the mean of its divisors is an integer number (5948838).

Almost surely, 2^57020912 is an apocalyptic number.

57020912 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57020912 is an abundant number, since it is smaller than the sum of its proper divisors (61955848).

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

57020912 is a wasteful number, since it uses less digits than its factorization.

57020912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274160 (or 274154 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 57020912 is about 7551.2192393017. The cubic root of 57020912 is about 384.8971716163.

Adding to 57020912 its reverse (21902075), we get a palindrome (78922987).

The spelling of 57020912 in words is "fifty-seven million, twenty thousand, nine hundred twelve".