12505286 has 8 divisors (see below), whose sum is σ = 19076040. Its totient is φ = 6146608.

The previous prime is 12505271. The next prime is 12505291. The reversal of 12505286 is 68250521.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 52871 + ... + 53106.

It is an arithmetic number, because the mean of its divisors is an integer number (2384505).

Almost surely, 2^12505286 is an apocalyptic number.

12505286 is a deficient number, since it is larger than the sum of its proper divisors (6570754).

12505286 is a wasteful number, since it uses less digits than its factorization.

12505286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106038.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 12505286 is about 3536.2813802072. The cubic root of 12505286 is about 232.1121509885.

The spelling of 12505286 in words is "twelve million, five hundred five thousand, two hundred eighty-six".