22256559 has 16 divisors (see below), whose sum is σ = 35509600. Its totient is φ = 13696128.

The previous prime is 22256551. The next prime is 22256569. The reversal of 22256559 is 95565222.

It is not a de Polignac number, because 22256559 - 2³ = 22256551 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 (22256551) 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, 31354 + ... + 32055.

It is an arithmetic number, because the mean of its divisors is an integer number (2219350).

Almost surely, 2^22256559 is an apocalyptic number.

22256559 is a deficient number, since it is larger than the sum of its proper divisors (13253041).

22256559 is a wasteful number, since it uses less digits than its factorization.

22256559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63431 (or 63425 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 22256559 is about 4717.6857674076. The cubic root of 22256559 is about 281.2889510498.

The spelling of 22256559 in words is "twenty-two million, two hundred fifty-six thousand, five hundred fifty-nine".