12625280 has 32 divisors (see below), whose sum is σ = 30183840. Its totient is φ = 5049856.

The previous prime is 12625259. The next prime is 12625297. The reversal of 12625280 is 8252621.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9224 + ... + 10503.

It is an arithmetic number, because the mean of its divisors is an integer number (943245).

Almost surely, 2^12625280 is an apocalyptic number.

12625280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12625280 is an abundant number, since it is smaller than the sum of its proper divisors (17558560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12625280 is an equidigital number, since it uses as much as digits as its factorization.

12625280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19746 (or 19734 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12625280 is about 3553.2070021320. The cubic root of 12625280 is about 232.8521967803.

The spelling of 12625280 in words is "twelve million, six hundred twenty-five thousand, two hundred eighty".