22505274 has 36 divisors (see below), whose sum is σ = 53602458. Its totient is φ = 6819120.

The previous prime is 22505251. The next prime is 22505317. The reversal of 22505274 is 47250522.

It can be written as a sum of positive squares in only one way, i.e., 17015625 + 5489649 = 4125^2 + 2343^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2989 + ... + 7344.

Almost surely, 2^22505274 is an apocalyptic number.

22505274 is an abundant number, since it is smaller than the sum of its proper divisors (31097184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22505274 is a wasteful number, since it uses less digits than its factorization.

22505274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363 (or 10349 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22505274 is about 4743.9723860916. The cubic root of 22505274 is about 282.3328648256.

Adding to 22505274 its reverse (47250522), we get a palindrome (69755796).

The spelling of 22505274 in words is "twenty-two million, five hundred five thousand, two hundred seventy-four".