22508113 has 4 divisors (see below), whose sum is σ = 22560768. Its totient is φ = 22455460.

The previous prime is 22508107. The next prime is 22508117. The reversal of 22508113 is 31180522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31180522 = 2 ⋅15590261.

It is a cyclic number.

It is not a de Polignac number, because 22508113 - 2⁵ = 22508081 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22508117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25681 + ... + 26542.

It is an arithmetic number, because the mean of its divisors is an integer number (5640192).

Almost surely, 2^22508113 is an apocalyptic number.

It is an amenable number.

22508113 is a deficient number, since it is larger than the sum of its proper divisors (52655).

22508113 is an equidigital number, since it uses as much as digits as its factorization.

22508113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52654.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 22508113 is about 4744.2715984648. The cubic root of 22508113 is about 282.3447362548.

Adding to 22508113 its reverse (31180522), we get a palindrome (53688635).

The spelling of 22508113 in words is "twenty-two million, five hundred eight thousand, one hundred thirteen".