12605225 has 6 divisors (see below), whose sum is σ = 15630510. Its totient is φ = 10084160.

The previous prime is 12605221. The next prime is 12605237. The reversal of 12605225 is 52250621.

12605225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2920681 + 9684544 = 1709^2 + 3112^2 .

It is not a de Polignac number, because 12605225 - 2² = 12605221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12605225.

It is not an unprimeable number, because it can be changed into a prime (12605221) 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, 252080 + ... + 252129.

It is an arithmetic number, because the mean of its divisors is an integer number (2605085).

Almost surely, 2^12605225 is an apocalyptic number.

It is an amenable number.

12605225 is a deficient number, since it is larger than the sum of its proper divisors (3025285).

12605225 is an equidigital number, since it uses as much as digits as its factorization.

12605225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504219 (or 504214 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 12605225 is about 3550.3837820720. The cubic root of 12605225 is about 232.7288377830.

Adding to 12605225 its reverse (52250621), we get a palindrome (64855846).

The spelling of 12605225 in words is "twelve million, six hundred five thousand, two hundred twenty-five".