12508425 has 72 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 6350400.

The previous prime is 12508421. The next prime is 12508453. The reversal of 12508425 is 52480521.

It is a happy number.

It is not a de Polignac number, because 12508425 - 2² = 12508421 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12508421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 176140 + ... + 176210.

It is an arithmetic number, because the mean of its divisors is an integer number (338520).

Almost surely, 2^12508425 is an apocalyptic number.

12508425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12508425 is a deficient number, since it is larger than the sum of its proper divisors (11865015).

12508425 is an equidigital number, since it uses as much as digits as its factorization.

12508425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 12508425 is about 3536.7251801631. The cubic root of 12508425 is about 232.1315704854.

Adding to 12508425 its reverse (52480521), we get a palindrome (64988946).

The spelling of 12508425 in words is "twelve million, five hundred eight thousand, four hundred twenty-five".