12966025 has 12 divisors (see below), whose sum is σ = 16138972. Its totient is φ = 10333440.

The previous prime is 12966007. The next prime is 12966067. The reversal of 12966025 is 52066921.

It can be written as a sum of positive squares in 6 ways, for example, as 3984016 + 8982009 = 1996^2 + 2997^2 .

It is not a de Polignac number, because 12966025 - 2⁵ = 12965993 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6997 + ... + 8653.

Almost surely, 2^12966025 is an apocalyptic number.

It is an amenable number.

12966025 is a deficient number, since it is larger than the sum of its proper divisors (3172947).

12966025 is a wasteful number, since it uses less digits than its factorization.

12966025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12966025 is about 3600.8367083221. The cubic root of 12966025 is about 234.9284526419.

The spelling of 12966025 in words is "twelve million, nine hundred sixty-six thousand, twenty-five".