12506486 has 4 divisors (see below), whose sum is σ = 18759732. Its totient is φ = 6253242.

The previous prime is 12506479. The next prime is 12506491. The reversal of 12506486 is 68460521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68460521 = 5101 ⋅13421.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126620 + ... + 3126623.

It is an arithmetic number, because the mean of its divisors is an integer number (4689933).

Almost surely, 2^12506486 is an apocalyptic number.

12506486 is a deficient number, since it is larger than the sum of its proper divisors (6253246).

12506486 is an equidigital number, since it uses as much as digits as its factorization.

12506486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253245.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12506486 is about 3536.4510458933. The cubic root of 12506486 is about 232.1195752002.

The spelling of 12506486 in words is "twelve million, five hundred six thousand, four hundred eighty-six".