5656656 has 40 divisors (see below), whose sum is σ = 14713344. Its totient is φ = 1872640.

The previous prime is 5656649. The next prime is 5656691. The reversal of 5656656 is 6566565.

It is a happy number.

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, 8860 + ... + 9476.

Almost surely, 2^5656656 is an apocalyptic number.

It is an amenable number.

5656656 is an abundant number, since it is smaller than the sum of its proper divisors (9056688).

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

5656656 is a wasteful number, since it uses less digits than its factorization.

5656656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 813 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The square root of 5656656 is about 2378.3725528184. The cubic root of 5656656 is about 178.1776621145.

Subtracting 5656656 from its reverse (6566565), we obtain a palindrome (909909).

The spelling of 5656656 in words is "five million, six hundred fifty-six thousand, six hundred fifty-six".