57812256 has 72 divisors (see below), whose sum is σ = 167940864. Its totient is φ = 18856320.

The previous prime is 57812243. The next prime is 57812263. The reversal of 57812256 is 65221875.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 57812256.

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, 11401 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (2332512).

Almost surely, 2^57812256 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 57812256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83970432).

57812256 is an abundant number, since it is smaller than the sum of its proper divisors (110128608).

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

57812256 is a wasteful number, since it uses less digits than its factorization.

57812256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334 (or 4323 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 57812256 is about 7603.4371175147. The cubic root of 57812256 is about 386.6695494566.

The spelling of 57812256 in words is "fifty-seven million, eight hundred twelve thousand, two hundred fifty-six".