22445265 has 16 divisors (see below), whose sum is σ = 36042048. Its totient is φ = 11927616.

The previous prime is 22445261. The next prime is 22445279. The reversal of 22445265 is 56254422.

It is a happy number.

It is not a de Polignac number, because 22445265 - 2² = 22445261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22445261) 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, 1842 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (2252628).

Almost surely, 2^22445265 is an apocalyptic number.

It is an amenable number.

22445265 is a deficient number, since it is larger than the sum of its proper divisors (13596783).

22445265 is a wasteful number, since it uses less digits than its factorization.

22445265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408.

The product of its digits is 19200, while the sum is 30.

The square root of 22445265 is about 4737.6434015236. The cubic root of 22445265 is about 282.0817000842.

Adding to 22445265 its reverse (56254422), we get a palindrome (78699687).

The spelling of 22445265 in words is "twenty-two million, four hundred forty-five thousand, two hundred sixty-five".