56257464 has 32 divisors (see below), whose sum is σ = 144447120. Its totient is φ = 18245376.

The previous prime is 56257463. The next prime is 56257469. The reversal of 56257464 is 46475265.

It is a super-2 number, since 2×56257464² = 6329804511422592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56257463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30789 + ... + 32564.

Almost surely, 2^56257464 is an apocalyptic number.

It is an amenable number.

56257464 is an abundant number, since it is smaller than the sum of its proper divisors (88189656).

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

56257464 is a wasteful number, since it uses less digits than its factorization.

56257464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63399 (or 63395 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 56257464 is about 7500.4975834940. The cubic root of 56257464 is about 383.1716628061.

The spelling of 56257464 in words is "fifty-six million, two hundred fifty-seven thousand, four hundred sixty-four".