22565413 has 8 divisors (see below), whose sum is σ = 24343928. Its totient is φ = 20793024.

The previous prime is 22565383. The next prime is 22565423. The reversal of 22565413 is 31456522.

It can be written as a sum of positive squares in 4 ways, for example, as 494209 + 22071204 = 703^2 + 4698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22565413 - 2⁹ = 22564901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22565423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8695 + ... + 10987.

It is an arithmetic number, because the mean of its divisors is an integer number (3042991).

Almost surely, 2^22565413 is an apocalyptic number.

It is an amenable number.

22565413 is a deficient number, since it is larger than the sum of its proper divisors (1778515).

22565413 is a wasteful number, since it uses less digits than its factorization.

22565413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063.

The product of its digits is 7200, while the sum is 28.

The square root of 22565413 is about 4750.3066216824. The cubic root of 22565413 is about 282.5841261450.

The spelling of 22565413 in words is "twenty-two million, five hundred sixty-five thousand, four hundred thirteen".