56656699 has 8 divisors (see below), whose sum is σ = 65443248. Its totient is φ = 48476160.

The previous prime is 56656673. The next prime is 56656709. The reversal of 56656699 is 99665665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56656699 - 2¹¹ = 56654651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56656399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151302 + ... + 151675.

It is an arithmetic number, because the mean of its divisors is an integer number (8180406).

Almost surely, 2^56656699 is an apocalyptic number.

56656699 is a deficient number, since it is larger than the sum of its proper divisors (8786549).

56656699 is a wasteful number, since it uses less digits than its factorization.

56656699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303005.

The product of its digits is 2624400, while the sum is 52.

The square root of 56656699 is about 7527.0644344259. The cubic root of 56656699 is about 384.0759285439.

It can be divided in two parts, 566566 and 99, that added together give a palindrome (566665).

The spelling of 56656699 in words is "fifty-six million, six hundred fifty-six thousand, six hundred ninety-nine".