12505808 has 20 divisors (see below), whose sum is σ = 27691680. Its totient is φ = 5359584.

The previous prime is 12505799. The next prime is 12505811. The reversal of 12505808 is 80850521.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55718 + ... + 55941.

It is an arithmetic number, because the mean of its divisors is an integer number (1384584).

Almost surely, 2^12505808 is an apocalyptic number.

It is an amenable number.

12505808 is an abundant number, since it is smaller than the sum of its proper divisors (15185872).

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

12505808 is a wasteful number, since it uses less digits than its factorization.

12505808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111674 (or 111668 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 12505808 is about 3536.3551857810. The cubic root of 12505808 is about 232.1153805789.

The spelling of 12505808 in words is "twelve million, five hundred five thousand, eight hundred eight".