56586388209 has 16 divisors (see below), whose sum is σ = 81256560000. Its totient is φ = 34820545536.

The previous prime is 56586388189. The next prime is 56586388213. The reversal of 56586388209 is 90288368565.

It is not a de Polignac number, because 56586388209 - 2¹³ = 56586380017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56586388409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264977 + ... + 1308945.

It is an arithmetic number, because the mean of its divisors is an integer number (5078535000).

Almost surely, 2^56586388209 is an apocalyptic number.

It is an amenable number.

56586388209 is a deficient number, since it is larger than the sum of its proper divisors (24670171791).

56586388209 is a wasteful number, since it uses less digits than its factorization.

56586388209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76984.

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 56586388209 in words is "fifty-six billion, five hundred eighty-six million, three hundred eighty-eight thousand, two hundred nine".