56657475 has 90 divisors (see below), whose sum is σ = 122297604. Its totient is φ = 25855200.

The previous prime is 56657473. The next prime is 56657479. The reversal of 56657475 is 57475665.

56657475 is a `hidden beast` number, since 5 + 6 + 6 + 574 + 75 = 666.

It is not a de Polignac number, because 56657475 - 2¹ = 56657473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56657475.

It is not an unprimeable number, because it can be changed into a prime (56657473) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 98940 + ... + 99510.

Almost surely, 2^56657475 is an apocalyptic number.

56657475 is an abundant number, since it is smaller than the sum of its proper divisors (65640129).

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

56657475 is a wasteful number, since it uses less digits than its factorization.

56657475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 586 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 56657475 is about 7527.1159815696. The cubic root of 56657475 is about 384.0776820380.

The spelling of 56657475 in words is "fifty-six million, six hundred fifty-seven thousand, four hundred seventy-five".