12866025 has 24 divisors (see below), whose sum is σ = 22525344. Its totient is φ = 6457600.

The previous prime is 12866011. The next prime is 12866041. The reversal of 12866025 is 52066821.

It is not a de Polignac number, because 12866025 - 2¹⁰ = 12865001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12865983 and 12866001.

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 23 ways as a sum of consecutive naturals, for example, 3771 + ... + 6320.

It is an arithmetic number, because the mean of its divisors is an integer number (938556).

Almost surely, 2^12866025 is an apocalyptic number.

12866025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12866025 is a deficient number, since it is larger than the sum of its proper divisors (9659319).

12866025 is a wasteful number, since it uses less digits than its factorization.

12866025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121 (or 10116 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 12866025 is about 3586.9241698146. The cubic root of 12866025 is about 234.3229342124.

The spelling of 12866025 in words is "twelve million, eight hundred sixty-six thousand, twenty-five".