22090325 has 6 divisors (see below), whose sum is σ = 27392034. Its totient is φ = 17672240.

The previous prime is 22090319. The next prime is 22090333. The reversal of 22090325 is 52309022.

It can be written as a sum of positive squares in 3 ways, for example, as 4231249 + 17859076 = 2057^2 + 4226^2 .

It is not a de Polignac number, because 22090325 - 2⁴ = 22090309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22090325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 441782 + ... + 441831.

It is an arithmetic number, because the mean of its divisors is an integer number (4565339).

Almost surely, 2^22090325 is an apocalyptic number.

22090325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22090325 is a deficient number, since it is larger than the sum of its proper divisors (5301709).

22090325 is an equidigital number, since it uses as much as digits as its factorization.

22090325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883623 (or 883618 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 22090325 is about 4700.0345743409. The cubic root of 22090325 is about 280.5868855136.

Adding to 22090325 its reverse (52309022), we get a palindrome (74399347).

The spelling of 22090325 in words is "twenty-two million, ninety thousand, three hundred twenty-five".