12538225 has 12 divisors (see below), whose sum is σ = 17768704. Its totient is φ = 8597520.

The previous prime is 12538223. The next prime is 12538249. The reversal of 12538225 is 52283521.

12538225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12538225 - 2¹ = 12538223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12538193 and 12538202.

It is not an unprimeable number, because it can be changed into a prime (12538223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35649 + ... + 35998.

Almost surely, 2^12538225 is an apocalyptic number.

It is an amenable number.

12538225 is a deficient number, since it is larger than the sum of its proper divisors (5230479).

12538225 is an equidigital number, since it uses as much as digits as its factorization.

12538225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71664 (or 71659 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 12538225 is about 3540.9356108238. The cubic root of 12538225 is about 232.3157672604.

The spelling of 12538225 in words is "twelve million, five hundred thirty-eight thousand, two hundred twenty-five".