22365225 has 18 divisors (see below), whose sum is σ = 40059006. Its totient is φ = 11928000.

The previous prime is 22365199. The next prime is 22365227. The reversal of 22365225 is 52256322.

22365225 is a `hidden beast` number, since 2 + 2 + 3 + 652 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2223081 + 20142144 = 1491^2 + 4488^2 .

It is not a de Polignac number, because 22365225 - 2¹⁷ = 22234153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22365227) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49476 + ... + 49925.

Almost surely, 2^22365225 is an apocalyptic number.

22365225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22365225 is a deficient number, since it is larger than the sum of its proper divisors (17693781).

22365225 is a wasteful number, since it uses less digits than its factorization.

22365225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99417 (or 99409 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 22365225 is about 4729.1886196260. The cubic root of 22365225 is about 281.7459988404.

The spelling of 22365225 in words is "twenty-two million, three hundred sixty-five thousand, two hundred twenty-five".