56285757 has 24 divisors (see below), whose sum is σ = 89169600. Its totient is φ = 33929280.

The previous prime is 56285731. The next prime is 56285777. The reversal of 56285757 is 75758265.

56285757 is a `hidden beast` number, since 56 + 28 + 575 + 7 = 666.

It is not a de Polignac number, because 56285757 - 2⁸ = 56285501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56285717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18273 + ... + 21129.

It is an arithmetic number, because the mean of its divisors is an integer number (3715400).

Almost surely, 2^56285757 is an apocalyptic number.

It is an amenable number.

56285757 is a deficient number, since it is larger than the sum of its proper divisors (32883843).

56285757 is a wasteful number, since it uses less digits than its factorization.

56285757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073 (or 3070 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 56285757 is about 7502.3834212869. The cubic root of 56285757 is about 383.2358869297.

The spelling of 56285757 in words is "fifty-six million, two hundred eighty-five thousand, seven hundred fifty-seven".