5656657 has 4 divisors (see below), whose sum is σ = 5711680. Its totient is φ = 5601636.

The previous prime is 5656649. The next prime is 5656691. The reversal of 5656657 is 7566565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5656657 - 2³ = 5656649 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5656757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27357 + ... + 27562.

It is an arithmetic number, because the mean of its divisors is an integer number (1427920).

Almost surely, 2^5656657 is an apocalyptic number.

It is an amenable number.

5656657 is a deficient number, since it is larger than the sum of its proper divisors (55023).

5656657 is a wasteful number, since it uses less digits than its factorization.

5656657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55022.

The product of its digits is 189000, while the sum is 40.

The square root of 5656657 is about 2378.3727630462. The cubic root of 5656657 is about 178.1776726141.

The spelling of 5656657 in words is "five million, six hundred fifty-six thousand, six hundred fifty-seven".