12659825 has 6 divisors (see below), whose sum is σ = 15698214. Its totient is φ = 10127840.

The previous prime is 12659819. The next prime is 12659827. The reversal of 12659825 is 52895621.

12659825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1018081 + 11641744 = 1009^2 + 3412^2 .

It is not a de Polignac number, because 12659825 - 2¹⁰ = 12658801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12659827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253172 + ... + 253221.

It is an arithmetic number, because the mean of its divisors is an integer number (2616369).

Almost surely, 2^12659825 is an apocalyptic number.

It is an amenable number.

12659825 is a deficient number, since it is larger than the sum of its proper divisors (3038389).

12659825 is an equidigital number, since it uses as much as digits as its factorization.

12659825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506403 (or 506398 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 12659825 is about 3558.0647829965. The cubic root of 12659825 is about 233.0643783129.

The spelling of 12659825 in words is "twelve million, six hundred fifty-nine thousand, eight hundred twenty-five".