57023256 has 64 divisors (see below), whose sum is σ = 156614400. Its totient is φ = 17221248.

The previous prime is 57023209. The next prime is 57023261. The reversal of 57023256 is 65232075.

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, 7770 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (2447100).

Almost surely, 2^57023256 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 57023256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78307200).

57023256 is an abundant number, since it is smaller than the sum of its proper divisors (99591144).

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

57023256 is a wasteful number, since it uses less digits than its factorization.

57023256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488 (or 5484 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 57023256 is about 7551.3744444306. The cubic root of 57023256 is about 384.9024456265.

The spelling of 57023256 in words is "fifty-seven million, twenty-three thousand, two hundred fifty-six".