22531530272 has 24 divisors (see below), whose sum is σ = 44412511500. Its totient is φ = 11252162304.

The previous prime is 22531530271. The next prime is 22531530277. The reversal of 22531530272 is 27203513522.

It can be written as a sum of positive squares in 2 ways, for example, as 22393326736 + 138203536 = 149644^2 + 11756^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (22531530271) 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, 398147 + ... + 451202.

Almost surely, 2^22531530272 is an apocalyptic number.

It is an amenable number.

22531530272 is a deficient number, since it is larger than the sum of its proper divisors (21880981228).

22531530272 is an equidigital number, since it uses as much as digits as its factorization.

22531530272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850188 (or 850180 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 22531530272 in words is "twenty-two billion, five hundred thirty-one million, five hundred thirty thousand, two hundred seventy-two".