12245425 has 6 divisors (see below), whose sum is σ = 15184358. Its totient is φ = 9796320.

The previous prime is 12245419. The next prime is 12245437. The reversal of 12245425 is 52454221.

It can be written as a sum of positive squares in 3 ways, for example, as 23409 + 12222016 = 153^2 + 3496^2 .

It is not a de Polignac number, because 12245425 - 2⁷ = 12245297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 489817 = 12245425 / (1 + 2 + 2 + 4 + 5 + 4 + 2 + 5).

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 12245425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244884 + ... + 244933.

Almost surely, 2^12245425 is an apocalyptic number.

It is an amenable number.

12245425 is a deficient number, since it is larger than the sum of its proper divisors (2938933).

12245425 is an equidigital number, since it uses as much as digits as its factorization.

12245425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489827 (or 489822 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 12245425 is about 3499.3463675378. The cubic root of 12245425 is about 230.4931134160.

Adding to 12245425 its reverse (52454221), we get a palindrome (64699646).

The spelling of 12245425 in words is "twelve million, two hundred forty-five thousand, four hundred twenty-five".