56551659 has 8 divisors (see below), whose sum is σ = 75617232. Its totient is φ = 37593600.

The previous prime is 56551613. The next prime is 56551699. The reversal of 56551659 is 95615565.

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

It is not a de Polignac number, because 56551659 - 2⁸ = 56551403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56551659.

It is not an unprimeable number, because it can be changed into a prime (56551699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25642 + ... + 27759.

It is an arithmetic number, because the mean of its divisors is an integer number (9452154).

Almost surely, 2^56551659 is an apocalyptic number.

56551659 is a deficient number, since it is larger than the sum of its proper divisors (19065573).

56551659 is a wasteful number, since it uses less digits than its factorization.

56551659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53757.

The product of its digits is 202500, while the sum is 42.

The square root of 56551659 is about 7520.0837096405. The cubic root of 56551659 is about 383.8384262198.

The spelling of 56551659 in words is "fifty-six million, five hundred fifty-one thousand, six hundred fifty-nine".