22265465 has 4 divisors (see below), whose sum is σ = 26718564. Its totient is φ = 17812368.

The previous prime is 22265447. The next prime is 22265483. The reversal of 22265465 is 56456222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56456222 = 2 ⋅28228111.

It is an interprime number because it is at equal distance from previous prime (22265447) and next prime (22265483).

It can be written as a sum of positive squares in 2 ways, for example, as 7458361 + 14807104 = 2731^2 + 3848^2 .

It is a cyclic number.

It is not a de Polignac number, because 22265465 - 2⁶ = 22265401 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, 2226542 + ... + 2226551.

It is an arithmetic number, because the mean of its divisors is an integer number (6679641).

Almost surely, 2^22265465 is an apocalyptic number.

It is an amenable number.

22265465 is a deficient number, since it is larger than the sum of its proper divisors (4453099).

22265465 is an equidigital number, since it uses as much as digits as its factorization.

22265465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453098.

The product of its digits is 28800, while the sum is 32.

The square root of 22265465 is about 4718.6295679996. The cubic root of 22265465 is about 281.3264654640.

The spelling of 22265465 in words is "twenty-two million, two hundred sixty-five thousand, four hundred sixty-five".