22560665 has 4 divisors (see below), whose sum is σ = 27072804. Its totient is φ = 18048528.

The previous prime is 22560617. The next prime is 22560697. The reversal of 22560665 is 56606522.

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 7529536 + 15031129 = 2744^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 22560665 - 2⁸ = 22560409 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, 2256062 + ... + 2256071.

It is an arithmetic number, because the mean of its divisors is an integer number (6768201).

Almost surely, 2^22560665 is an apocalyptic number.

It is an amenable number.

22560665 is a deficient number, since it is larger than the sum of its proper divisors (4512139).

22560665 is an equidigital number, since it uses as much as digits as its factorization.

22560665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512138.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 22560665 is about 4749.8068381777. The cubic root of 22560665 is about 282.5643051983.

The spelling of 22560665 in words is "twenty-two million, five hundred sixty thousand, six hundred sixty-five".