12517825 has 6 divisors (see below), whose sum is σ = 15522134. Its totient is φ = 10014240.

The previous prime is 12517793. The next prime is 12517829. The reversal of 12517825 is 52871521.

It can be written as a sum of positive squares in 3 ways, for example, as 323761 + 12194064 = 569^2 + 3492^2 .

It is not a de Polignac number, because 12517825 - 2⁵ = 12517793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12517829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250332 + ... + 250381.

Almost surely, 2^12517825 is an apocalyptic number.

It is an amenable number.

12517825 is a deficient number, since it is larger than the sum of its proper divisors (3004309).

12517825 is an equidigital number, since it uses as much as digits as its factorization.

12517825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500723 (or 500718 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 12517825 is about 3538.0538435699. The cubic root of 12517825 is about 232.1897043803.

The spelling of 12517825 in words is "twelve million, five hundred seventeen thousand, eight hundred twenty-five".