12880725 has 48 divisors (see below), whose sum is σ = 25040064. Its totient is φ = 5760000.

The previous prime is 12880723. The next prime is 12880729. The reversal of 12880725 is 52708821.

It is not a de Polignac number, because 12880725 - 2¹ = 12880723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880723) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10125 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (521668).

Almost surely, 2^12880725 is an apocalyptic number.

12880725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12880725 is a deficient number, since it is larger than the sum of its proper divisors (12159339).

12880725 is a wasteful number, since it uses less digits than its factorization.

12880725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 12880725 is about 3588.9726942400. The cubic root of 12880725 is about 234.4121416694.

The spelling of 12880725 in words is "twelve million, eight hundred eighty thousand, seven hundred twenty-five".