22653265 has 24 divisors (see below), whose sum is σ = 29464632. Its totient is φ = 16711680.

The previous prime is 22653233. The next prime is 22653307. The reversal of 22653265 is 56235622.

22653265 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 12 ways, for example, as 440896 + 22212369 = 664^2 + 4713^2 .

It is not a de Polignac number, because 22653265 - 2⁵ = 22653233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88017 + ... + 88273.

It is an arithmetic number, because the mean of its divisors is an integer number (1227693).

Almost surely, 2^22653265 is an apocalyptic number.

It is an amenable number.

22653265 is a deficient number, since it is larger than the sum of its proper divisors (6811367).

22653265 is a wasteful number, since it uses less digits than its factorization.

22653265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 340 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 22653265 is about 4759.5446210746. The cubic root of 22653265 is about 282.9503714994.

Adding to 22653265 its reverse (56235622), we get a palindrome (78888887).

The spelling of 22653265 in words is "twenty-two million, six hundred fifty-three thousand, two hundred sixty-five".