12504425 has 6 divisors (see below), whose sum is σ = 15505518. Its totient is φ = 10003520.

The previous prime is 12504391. The next prime is 12504431. The reversal of 12504425 is 52440521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 85849 + 12418576 = 293^2 + 3524^2 .

It is not a de Polignac number, because 12504425 - 2⁸ = 12504169 is a prime.

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 12504425.

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, 250064 + ... + 250113.

It is an arithmetic number, because the mean of its divisors is an integer number (2584253).

Almost surely, 2^12504425 is an apocalyptic number.

It is an amenable number.

12504425 is a deficient number, since it is larger than the sum of its proper divisors (3001093).

12504425 is an equidigital number, since it uses as much as digits as its factorization.

12504425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500187 (or 500182 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 12504425 is about 3536.1596400615. The cubic root of 12504425 is about 232.1068238239.

Adding to 12504425 its reverse (52440521), we get a palindrome (64944946).

The spelling of 12504425 in words is "twelve million, five hundred four thousand, four hundred twenty-five".