12685225 has 24 divisors (see below), whose sum is σ = 18123840. Its totient is φ = 8627520.

The previous prime is 12685223. The next prime is 12685229. The reversal of 12685225 is 52258621.

12685225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12685225 - 2¹ = 12685223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12685223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30066 + ... + 30484.

It is an arithmetic number, because the mean of its divisors is an integer number (755160).

Almost surely, 2^12685225 is an apocalyptic number.

It is an amenable number.

12685225 is a deficient number, since it is larger than the sum of its proper divisors (5438615).

12685225 is a wasteful number, since it uses less digits than its factorization.

12685225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 604 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 12685225 is about 3561.6323504820. The cubic root of 12685225 is about 233.2201435133.

The spelling of 12685225 in words is "twelve million, six hundred eighty-five thousand, two hundred twenty-five".