56257470 has 64 divisors (see below), whose sum is σ = 151200000. Its totient is φ = 14884128.

The previous prime is 56257469. The next prime is 56257507. The reversal of 56257470 is 7475265.

56257470 is a `hidden beast` number, since 562 + 57 + 47 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36781 + ... + 38279.

It is an arithmetic number, because the mean of its divisors is an integer number (2362500).

Almost surely, 2^56257470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56257470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75600000).

56257470 is an abundant number, since it is smaller than the sum of its proper divisors (94942530).

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

56257470 is a wasteful number, since it uses less digits than its factorization.

56257470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 56257470 is about 7500.4979834675. The cubic root of 56257470 is about 383.1716764281.

The spelling of 56257470 in words is "fifty-six million, two hundred fifty-seven thousand, four hundred seventy".