22565227 has 12 divisors (see below), whose sum is σ = 23705136. Its totient is φ = 21471840.

The previous prime is 22565209. The next prime is 22565237. The reversal of 22565227 is 72256522.

It is not a de Polignac number, because 22565227 - 2²³ = 14176619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22565237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72402 + ... + 72712.

It is an arithmetic number, because the mean of its divisors is an integer number (1975428).

Almost surely, 2^22565227 is an apocalyptic number.

22565227 is a deficient number, since it is larger than the sum of its proper divisors (1139909).

22565227 is an equidigital number, since it uses as much as digits as its factorization.

22565227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 401 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 22565227 is about 4750.2870439585. The cubic root of 22565227 is about 282.5833497238.

The spelling of 22565227 in words is "twenty-two million, five hundred sixty-five thousand, two hundred twenty-seven".