22253909 has 4 divisors (see below), whose sum is σ = 22855404. Its totient is φ = 21652416.

The previous prime is 22253879. The next prime is 22253947. The reversal of 22253909 is 90935222.

It is a happy number.

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 14273284 + 7980625 = 3778^2 + 2825^2 .

It is a cyclic number.

It is not a de Polignac number, because 22253909 - 2⁸ = 22253653 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 (22253809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300692 + ... + 300765.

It is an arithmetic number, because the mean of its divisors is an integer number (5713851).

Almost surely, 2^22253909 is an apocalyptic number.

It is an amenable number.

22253909 is a deficient number, since it is larger than the sum of its proper divisors (601495).

22253909 is an equidigital number, since it uses as much as digits as its factorization.

22253909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601494.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 22253909 is about 4717.4049010022. The cubic root of 22253909 is about 281.2777866209.

The spelling of 22253909 in words is "twenty-two million, two hundred fifty-three thousand, nine hundred nine".