12800925 has 18 divisors (see below), whose sum is σ = 22928282. Its totient is φ = 6827040.

The previous prime is 12800891. The next prime is 12800929. The reversal of 12800925 is 52900821.

It can be written as a sum of positive squares in 3 ways, for example, as 34596 + 12766329 = 186^2 + 3573^2 .

It is not a de Polignac number, because 12800925 - 2⁷ = 12800797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28222 + ... + 28671.

Almost surely, 2^12800925 is an apocalyptic number.

12800925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12800925 is a deficient number, since it is larger than the sum of its proper divisors (10127357).

12800925 is a wasteful number, since it uses less digits than its factorization.

12800925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56909 (or 56901 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 12800925 is about 3577.8380343442. The cubic root of 12800925 is about 233.9270537471.

The spelling of 12800925 in words is "twelve million, eight hundred thousand, nine hundred twenty-five".