22555265 has 4 divisors (see below), whose sum is σ = 27066324. Its totient is φ = 18044208.

The previous prime is 22555241. The next prime is 22555271. The reversal of 22555265 is 56255522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7118224 + 15437041 = 2668^2 + 3929^2 .

It is a cyclic number.

It is not a de Polignac number, because 22555265 - 2⁶ = 22555201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255522 + ... + 2255531.

It is an arithmetic number, because the mean of its divisors is an integer number (6766581).

Almost surely, 2^22555265 is an apocalyptic number.

It is an amenable number.

22555265 is a deficient number, since it is larger than the sum of its proper divisors (4511059).

22555265 is an equidigital number, since it uses as much as digits as its factorization.

22555265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511058.

The product of its digits is 30000, while the sum is 32.

The square root of 22555265 is about 4749.2383599899. The cubic root of 22555265 is about 282.5417590395.

The spelling of 22555265 in words is "twenty-two million, five hundred fifty-five thousand, two hundred sixty-five".