22452225 has 12 divisors (see below), whose sum is σ = 37121136. Its totient is φ = 11974480.

The previous prime is 22452197. The next prime is 22452233. The reversal of 22452225 is 52225422.

It is a happy number.

It is not a de Polignac number, because 22452225 - 2⁷ = 22452097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22452195 and 22452204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149607 + ... + 149756.

It is an arithmetic number, because the mean of its divisors is an integer number (3093428).

Almost surely, 2^22452225 is an apocalyptic number.

22452225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22452225 is a deficient number, since it is larger than the sum of its proper divisors (14668911).

22452225 is a wasteful number, since it uses less digits than its factorization.

22452225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299376 (or 299371 counting only the distinct ones).

The product of its digits is 3200, while the sum is 24.

The square root of 22452225 is about 4738.3778869989. The cubic root of 22452225 is about 282.1108537570.

Adding to 22452225 its reverse (52225422), we get a palindrome (74677647).

The spelling of 22452225 in words is "twenty-two million, four hundred fifty-two thousand, two hundred twenty-five".