56257872 has 80 divisors (see below), whose sum is σ = 161989632. Its totient is φ = 16677760.

The previous prime is 56257849. The next prime is 56257891. The reversal of 56257872 is 27875265.

56257872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23683 + ... + 25949.

Almost surely, 2^56257872 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 56257872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80994816).

56257872 is an abundant number, since it is smaller than the sum of its proper divisors (105731760).

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

56257872 is a wasteful number, since it uses less digits than its factorization.

56257872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336 (or 2330 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 56257872 is about 7500.5247816403. The cubic root of 56257872 is about 383.1725891048.

The spelling of 56257872 in words is "fifty-six million, two hundred fifty-seven thousand, eight hundred seventy-two".