22504256253 has 6 divisors (see below), whose sum is σ = 32506147934. Its totient is φ = 15002837496.

The previous prime is 22504256251. The next prime is 22504256263. The reversal of 22504256253 is 35265240522.

22504256253 is a `hidden beast` number, since 2 + 2 + 5 + 0 + 4 + 25 + 625 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22011283044 + 492973209 = 148362^2 + 22203^2 .

It is not a de Polignac number, because 22504256253 - 2¹ = 22504256251 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 (22504256251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1250236450 + ... + 1250236467.

Almost surely, 2^22504256253 is an apocalyptic number.

It is an amenable number.

22504256253 is a deficient number, since it is larger than the sum of its proper divisors (10001891681).

22504256253 is a wasteful number, since it uses less digits than its factorization.

22504256253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500472923 (or 2500472920 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 22504256253 its reverse (35265240522), we get a palindrome (57769496775).

The spelling of 22504256253 in words is "twenty-two billion, five hundred four million, two hundred fifty-six thousand, two hundred fifty-three".