12250225 has 12 divisors (see below), whose sum is σ = 16359196. Its totient is φ = 9046080.

The previous prime is 12250211. The next prime is 12250247. The reversal of 12250225 is 52205221.

It can be written as a sum of positive squares in 6 ways, for example, as 3111696 + 9138529 = 1764^2 + 3023^2 .

It is not a de Polignac number, because 12250225 - 2⁷ = 12250097 is a prime.

It is a Duffinian number.

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, 18522 + ... + 19171.

Almost surely, 2^12250225 is an apocalyptic number.

It is an amenable number.

12250225 is a deficient number, since it is larger than the sum of its proper divisors (4108971).

12250225 is a wasteful number, since it uses less digits than its factorization.

12250225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37716 (or 37711 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 12250225 is about 3500.0321427095. The cubic root of 12250225 is about 230.5232259523.

Adding to 12250225 its reverse (52205221), we get a palindrome (64455446).

The spelling of 12250225 in words is "twelve million, two hundred fifty thousand, two hundred twenty-five".