22543401225 has 96 divisors (see below), whose sum is σ = 40323847680. Its totient is φ = 11071779840.

The previous prime is 22543401193. The next prime is 22543401241. The reversal of 22543401225 is 52210434522.

It is not a de Polignac number, because 22543401225 - 2⁵ = 22543401193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22543401192 and 22543401201.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13923466 + ... + 13925084.

It is an arithmetic number, because the mean of its divisors is an integer number (420040080).

Almost surely, 2^22543401225 is an apocalyptic number.

22543401225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22543401225 is a deficient number, since it is larger than the sum of its proper divisors (17780446455).

22543401225 is a wasteful number, since it uses less digits than its factorization.

22543401225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1874 counting only the distinct ones).

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

Adding to 22543401225 its reverse (52210434522), we get a palindrome (74753835747).

The spelling of 22543401225 in words is "twenty-two billion, five hundred forty-three million, four hundred one thousand, two hundred twenty-five".