22524321225 has 144 divisors (see below), whose sum is σ = 44115176448. Its totient is φ = 10139519040.

The previous prime is 22524321163. The next prime is 22524321247. The reversal of 22524321225 is 52212342522.

It is a happy number.

It is not a de Polignac number, because 22524321225 - 2⁹ = 22524320713 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22524321192 and 22524321201.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 134876092 + ... + 134876258.

It is an arithmetic number, because the mean of its divisors is an integer number (306355392).

Almost surely, 2^22524321225 is an apocalyptic number.

22524321225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22524321225 is a deficient number, since it is larger than the sum of its proper divisors (21590855223).

22524321225 is an equidigital number, since it uses as much as digits as its factorization.

22524321225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 289 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

Adding to 22524321225 its reverse (52212342522), we get a palindrome (74736663747).

The spelling of 22524321225 in words is "twenty-two billion, five hundred twenty-four million, three hundred twenty-one thousand, two hundred twenty-five".