22225532 has 12 divisors (see below), whose sum is σ = 44451120. Its totient is φ = 9525216.

The previous prime is 22225519. The next prime is 22225537. The reversal of 22225532 is 23552222.

It is a happy number.

22225532 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22225498 and 22225507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396857 + ... + 396912.

It is an arithmetic number, because the mean of its divisors is an integer number (3704260).

Almost surely, 2^22225532 is an apocalyptic number.

It is an amenable number.

22225532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22225532 is a wasteful number, since it uses less digits than its factorization.

22225532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793780 (or 793778 counting only the distinct ones).

The product of its digits is 2400, while the sum is 23.

The square root of 22225532 is about 4714.3962497864. The cubic root of 22225532 is about 281.1581789478.

Adding to 22225532 its reverse (23552222), we get a palindrome (45777754).

The spelling of 22225532 in words is "twenty-two million, two hundred twenty-five thousand, five hundred thirty-two".