12642625 has 8 divisors (see below), whose sum is σ = 15778152. Its totient is φ = 10114000.

The previous prime is 12642613. The next prime is 12642631. The reversal of 12642625 is 52624621.

It can be written as a sum of positive squares in 4 ways, for example, as 25921 + 12616704 = 161^2 + 3552^2 .

It is not a de Polignac number, because 12642625 - 2⁵ = 12642593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12642593 and 12642602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50446 + ... + 50695.

It is an arithmetic number, because the mean of its divisors is an integer number (1972269).

Almost surely, 2^12642625 is an apocalyptic number.

It is an amenable number.

12642625 is a deficient number, since it is larger than the sum of its proper divisors (3135527).

12642625 is an equidigital number, since it uses as much as digits as its factorization.

12642625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101156 (or 101146 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 12642625 is about 3555.6469172290. The cubic root of 12642625 is about 232.9587811679.

The spelling of 12642625 in words is "twelve million, six hundred forty-two thousand, six hundred twenty-five".