12506512 has 20 divisors (see below), whose sum is σ = 24748416. Its totient is φ = 6119840.

The previous prime is 12506497. The next prime is 12506519. The reversal of 12506512 is 21560521.

It is a super-2 number, since 2×12506512² = 312825684812288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12506519) 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 3 ways as a sum of consecutive naturals, for example, 7564 + ... + 9067.

Almost surely, 2^12506512 is an apocalyptic number.

It is an amenable number.

12506512 is a deficient number, since it is larger than the sum of its proper divisors (12241904).

12506512 is a wasteful number, since it uses less digits than its factorization.

12506512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16686 (or 16680 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 12506512 is about 3536.4547218931. The cubic root of 12506512 is about 232.1197360528.

The spelling of 12506512 in words is "twelve million, five hundred six thousand, five hundred twelve".