12520025 has 24 divisors (see below), whose sum is σ = 18361920. Its totient is φ = 8285760.

The previous prime is 12520021. The next prime is 12520033. The reversal of 12520025 is 52002521.

It is not a de Polignac number, because 12520025 - 2² = 12520021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12519985 and 12520012.

It is not an unprimeable number, because it can be changed into a prime (12520021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3842 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (765080).

Almost surely, 2^12520025 is an apocalyptic number.

It is an amenable number.

12520025 is a deficient number, since it is larger than the sum of its proper divisors (5841895).

12520025 is a wasteful number, since it uses less digits than its factorization.

12520025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 12520025 is about 3538.3647352979. The cubic root of 12520025 is about 232.2033059825.

Adding to 12520025 its reverse (52002521), we get a palindrome (64522546).

The spelling of 12520025 in words is "twelve million, five hundred twenty thousand, twenty-five".