22432225 has 12 divisors (see below), whose sum is σ = 28776060. Its totient is φ = 17326400.

The previous prime is 22432219. The next prime is 22432247. The reversal of 22432225 is 52223422.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1281424 + 21150801 = 1132^2 + 4599^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22432225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22432196 and 22432205.

It is a congruent number.

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, 14746 + ... + 16195.

It is an arithmetic number, because the mean of its divisors is an integer number (2398005).

Almost surely, 2^22432225 is an apocalyptic number.

22432225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22432225 is a deficient number, since it is larger than the sum of its proper divisors (6343835).

22432225 is a wasteful number, since it uses less digits than its factorization.

22432225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30980 (or 30975 counting only the distinct ones).

The product of its digits is 1920, while the sum is 22.

The square root of 22432225 is about 4736.2669899405. The cubic root of 22432225 is about 282.0270626074.

Adding to 22432225 its reverse (52223422), we get a palindrome (74655647).

The spelling of 22432225 in words is "twenty-two million, four hundred thirty-two thousand, two hundred twenty-five".