22508045 has 8 divisors (see below), whose sum is σ = 30868224. Its totient is φ = 15434064.

The previous prime is 22508041. The next prime is 22508069. The reversal of 22508045 is 54080522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22508045 - 2² = 22508041 is a prime.

It is a super-2 number, since 2×22508045² = 1013224179444050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22508041) 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 7 ways as a sum of consecutive naturals, for example, 321509 + ... + 321578.

It is an arithmetic number, because the mean of its divisors is an integer number (3858528).

Almost surely, 2^22508045 is an apocalyptic number.

It is an amenable number.

22508045 is a deficient number, since it is larger than the sum of its proper divisors (8360179).

22508045 is an equidigital number, since it uses as much as digits as its factorization.

22508045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643099.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 22508045 is about 4744.2644319220. The cubic root of 22508045 is about 282.3444519209.

Adding to 22508045 its reverse (54080522), we get a palindrome (76588567).

The spelling of 22508045 in words is "twenty-two million, five hundred eight thousand, forty-five".