57152256 has 72 divisors (see below), whose sum is σ = 173854464. Its totient is φ = 16327680.

The previous prime is 57152233. The next prime is 57152281. The reversal of 57152256 is 65225175.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61 + ... + 10691.

Almost surely, 2^57152256 is an apocalyptic number.

57152256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57152256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86927232).

57152256 is an abundant number, since it is smaller than the sum of its proper divisors (116702208).

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

57152256 is a wasteful number, since it uses less digits than its factorization.

57152256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10657 (or 10643 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 57152256 is about 7559.9111105885. The cubic root of 57152256 is about 385.1924736147.

The spelling of 57152256 in words is "fifty-seven million, one hundred fifty-two thousand, two hundred fifty-six".