56257788 has 12 divisors (see below), whose sum is σ = 131268200. Its totient is φ = 18752592.

The previous prime is 56257787. The next prime is 56257801. The reversal of 56257788 is 88775265.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56257783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344063 + ... + 2344086.

Almost surely, 2^56257788 is an apocalyptic number.

It is an amenable number.

56257788 is an abundant number, since it is smaller than the sum of its proper divisors (75010412).

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

56257788 is a wasteful number, since it uses less digits than its factorization.

56257788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688156 (or 4688154 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 56257788 is about 7500.5191820300. The cubic root of 56257788 is about 383.1723983966.

The spelling of 56257788 in words is "fifty-six million, two hundred fifty-seven thousand, seven hundred eighty-eight".