12635158825 has 6 divisors (see below), whose sum is σ = 15667596974. Its totient is φ = 10108127040.

The previous prime is 12635158771. The next prime is 12635158831. The reversal of 12635158825 is 52885153621.

12635158825 is digitally balanced in base 2, 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 479434816 + 12155724009 = 21896^2 + 110253^2 .

It is not a de Polignac number, because 12635158825 - 2³³ = 4045224233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252703152 + ... + 252703201.

Almost surely, 2^12635158825 is an apocalyptic number.

It is an amenable number.

12635158825 is a deficient number, since it is larger than the sum of its proper divisors (3032438149).

12635158825 is an equidigital number, since it uses as much as digits as its factorization.

12635158825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505406363 (or 505406358 counting only the distinct ones).

The product of its digits is 576000, while the sum is 46.

The spelling of 12635158825 in words is "twelve billion, six hundred thirty-five million, one hundred fifty-eight thousand, eight hundred twenty-five".