12553225 has 12 divisors (see below), whose sum is σ = 16482204. Its totient is φ = 9451520.

The previous prime is 12553213. The next prime is 12553241. The reversal of 12553225 is 52235521.

It is a happy number.

12553225 is digitally balanced in base 2, 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 6 ways, for example, as 1610361 + 10942864 = 1269^2 + 3308^2 .

It is not a de Polignac number, because 12553225 - 2⁷ = 12553097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12553225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14344 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (1373517).

Almost surely, 2^12553225 is an apocalyptic number.

It is an amenable number.

12553225 is a deficient number, since it is larger than the sum of its proper divisors (3928979).

12553225 is a wasteful number, since it uses less digits than its factorization.

12553225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29564 (or 29559 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 12553225 is about 3543.0530619792. The cubic root of 12553225 is about 232.4083733453.

Adding to 12553225 its reverse (52235521), we get a palindrome (64788746).

The spelling of 12553225 in words is "twelve million, five hundred fifty-three thousand, two hundred twenty-five".