22554231225 has 24 divisors (see below), whose sum is σ = 37561866720. Its totient is φ = 11941115520.

The previous prime is 22554231221. The next prime is 22554231247. The reversal of 22554231225 is 52213245522.

It is not a de Polignac number, because 22554231225 - 2² = 22554231221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22554231221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1087255 + ... + 1107804.

It is an arithmetic number, because the mean of its divisors is an integer number (1565077780).

Almost surely, 2^22554231225 is an apocalyptic number.

22554231225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22554231225 is a deficient number, since it is larger than the sum of its proper divisors (15007635495).

22554231225 is a wasteful number, since it uses less digits than its factorization.

22554231225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195209 (or 2195204 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

Adding to 22554231225 its reverse (52213245522), we get a palindrome (74767476747).

The spelling of 22554231225 in words is "twenty-two billion, five hundred fifty-four million, two hundred thirty-one thousand, two hundred twenty-five".