22625165 has 4 divisors (see below), whose sum is σ = 27150204. Its totient is φ = 18100128.

The previous prime is 22625149. The next prime is 22625179. The reversal of 22625165 is 56152622.

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 8868484 + 13756681 = 2978^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 22625165 - 2⁴ = 22625149 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 3 ways as a sum of consecutive naturals, for example, 2262512 + ... + 2262521.

It is an arithmetic number, because the mean of its divisors is an integer number (6787551).

Almost surely, 2^22625165 is an apocalyptic number.

It is an amenable number.

22625165 is a deficient number, since it is larger than the sum of its proper divisors (4525039).

22625165 is an equidigital number, since it uses as much as digits as its factorization.

22625165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525038.

The product of its digits is 7200, while the sum is 29.

The square root of 22625165 is about 4756.5917419934. The cubic root of 22625165 is about 282.8333288384.

Adding to 22625165 its reverse (56152622), we get a palindrome (78777787).

The spelling of 22625165 in words is "twenty-two million, six hundred twenty-five thousand, one hundred sixty-five".