56288986009 has 9 divisors (see below), whose sum is σ = 59412247317. Its totient is φ = 53322137244.

The previous prime is 56288985997. The next prime is 56288986027. The reversal of 56288986009 is 90068988265.

The square root of 56288986009 is 237253.

It is a perfect power (a square), and thus also a powerful number.

56288986009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56288986009 - 2¹⁹ = 56288461721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56288986079) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4501564 + ... + 4514050.

It is an arithmetic number, because the mean of its divisors is an integer number (6601360813).

Almost surely, 2^56288986009 is an apocalyptic number.

56288986009 is the 237253-rd square number.

56288986009 is the 118627-th centered octagonal number.

It is an amenable number.

56288986009 is a deficient number, since it is larger than the sum of its proper divisors (3123261308).

56288986009 is an frugal number, since it uses more digits than its factorization.

56288986009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25012 (or 12506 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 56288986009 in words is "fifty-six billion, two hundred eighty-eight million, nine hundred eighty-six thousand, nine".