22025365 has 4 divisors (see below), whose sum is σ = 26430444. Its totient is φ = 17620288.

The previous prime is 22025327. The next prime is 22025371. The reversal of 22025365 is 56352022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56352022 = 2 ⋅28176011.

It can be written as a sum of positive squares in 2 ways, for example, as 10909809 + 11115556 = 3303^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 22025365 - 2⁹ = 22024853 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, 2202532 + ... + 2202541.

It is an arithmetic number, because the mean of its divisors is an integer number (6607611).

Almost surely, 2^22025365 is an apocalyptic number.

It is an amenable number.

22025365 is a deficient number, since it is larger than the sum of its proper divisors (4405079).

22025365 is an equidigital number, since it uses as much as digits as its factorization.

22025365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405078.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 22025365 is about 4693.1188989839. The cubic root of 22025365 is about 280.3115791719.

Adding to 22025365 its reverse (56352022), we get a palindrome (78377387).

The spelling of 22025365 in words is "twenty-two million, twenty-five thousand, three hundred sixty-five".