56656199 has 4 divisors (see below), whose sum is σ = 59119536. Its totient is φ = 54192864.

The previous prime is 56656183. The next prime is 56656211. The reversal of 56656199 is 99165665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56656199 - 2⁴ = 56656183 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1231634 + ... + 1231679.

It is an arithmetic number, because the mean of its divisors is an integer number (14779884).

Almost surely, 2^56656199 is an apocalyptic number.

56656199 is a deficient number, since it is larger than the sum of its proper divisors (2463337).

56656199 is a wasteful number, since it uses less digits than its factorization.

56656199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463336.

The product of its digits is 437400, while the sum is 47.

The square root of 56656199 is about 7527.0312208732. The cubic root of 56656199 is about 384.0747987068.

It can be divided in two parts, 566 and 56199, that added together give a palindrome (56765).

The spelling of 56656199 in words is "fifty-six million, six hundred fifty-six thousand, one hundred ninety-nine".