22225925 has 6 divisors (see below), whose sum is σ = 27560178. Its totient is φ = 17780720.

The previous prime is 22225909. The next prime is 22225927. The reversal of 22225925 is 52952222.

It can be written as a sum of positive squares in 3 ways, for example, as 863041 + 21362884 = 929^2 + 4622^2 .

It is not a de Polignac number, because 22225925 - 2⁴ = 22225909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444494 + ... + 444543.

It is an arithmetic number, because the mean of its divisors is an integer number (4593363).

Almost surely, 2^22225925 is an apocalyptic number.

22225925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22225925 is a deficient number, since it is larger than the sum of its proper divisors (5334253).

22225925 is an equidigital number, since it uses as much as digits as its factorization.

22225925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889047 (or 889042 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 22225925 is about 4714.4379304430. The cubic root of 22225925 is about 281.1598361187.

The spelling of 22225925 in words is "twenty-two million, two hundred twenty-five thousand, nine hundred twenty-five".