56509684 has 24 divisors (see below), whose sum is σ = 123294528. Its totient is φ = 22016640.

The previous prime is 56509657. The next prime is 56509711. The reversal of 56509684 is 48690565.

It is an interprime number because it is at equal distance from previous prime (56509657) and next prime (56509711).

It is a self number, because there is not a number n which added to its sum of digits gives 56509684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91429 + ... + 92044.

It is an arithmetic number, because the mean of its divisors is an integer number (5137272).

Almost surely, 2^56509684 is an apocalyptic number.

It is an amenable number.

56509684 is an abundant number, since it is smaller than the sum of its proper divisors (66784844).

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

56509684 is a wasteful number, since it uses less digits than its factorization.

56509684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183495 (or 183493 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 56509684 is about 7517.2923316843. The cubic root of 56509684 is about 383.7434357509.

The spelling of 56509684 in words is "fifty-six million, five hundred nine thousand, six hundred eighty-four".