22423344236225 has 6 divisors (see below), whose sum is σ = 27804946852950. Its totient is φ = 17938675388960.

The previous prime is 22423344236201. The next prime is 22423344236299. The reversal of 22423344236225 is 52263244332422.

It can be written as a sum of positive squares in 3 ways, for example, as 7747488131761 + 14675856104464 = 2783431^2 + 3830908^2 .

It is not a de Polignac number, because 22423344236225 - 2²⁰ = 22423343187649 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448466884700 + ... + 448466884749.

It is an arithmetic number, because the mean of its divisors is an integer number (4634157808825).

Almost surely, 2^{22423344236225} is an apocalyptic number.

22423344236225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22423344236225 is a deficient number, since it is larger than the sum of its proper divisors (5381602616725).

22423344236225 is an equidigital number, since it uses as much as digits as its factorization.

22423344236225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896933769459 (or 896933769454 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 44.

Adding to 22423344236225 its reverse (52263244332422), we get a palindrome (74686588568647).

The spelling of 22423344236225 in words is "twenty-two trillion, four hundred twenty-three billion, three hundred forty-four million, two hundred thirty-six thousand, two hundred twenty-five".