22601365 has 4 divisors (see below), whose sum is σ = 27121644. Its totient is φ = 18081088.

The previous prime is 22601333. The next prime is 22601401. The reversal of 22601365 is 56310622.

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 4137156 + 18464209 = 2034^2 + 4297^2 .

It is a cyclic number.

It is not a de Polignac number, because 22601365 - 2⁵ = 22601333 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, 2260132 + ... + 2260141.

It is an arithmetic number, because the mean of its divisors is an integer number (6780411).

Almost surely, 2^22601365 is an apocalyptic number.

It is an amenable number.

22601365 is a deficient number, since it is larger than the sum of its proper divisors (4520279).

22601365 is an equidigital number, since it uses as much as digits as its factorization.

22601365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520278.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22601365 is about 4754.0892923882. The cubic root of 22601365 is about 282.7341207969.

Adding to 22601365 its reverse (56310622), we get a palindrome (78911987).

The spelling of 22601365 in words is "twenty-two million, six hundred one thousand, three hundred sixty-five".