12663256 has 16 divisors (see below), whose sum is σ = 24562800. Its totient is φ = 6113184.

The previous prime is 12663251. The next prime is 12663263. The reversal of 12663256 is 65236621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27060 + ... + 27523.

It is an arithmetic number, because the mean of its divisors is an integer number (1535175).

Almost surely, 2^12663256 is an apocalyptic number.

It is an amenable number.

12663256 is a deficient number, since it is larger than the sum of its proper divisors (11899544).

12663256 is a wasteful number, since it uses less digits than its factorization.

12663256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54618 (or 54614 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 12663256 is about 3558.5468944500. The cubic root of 12663256 is about 233.0854310434.

Adding to 12663256 its reverse (65236621), we get a palindrome (77899877).

The spelling of 12663256 in words is "twelve million, six hundred sixty-three thousand, two hundred fifty-six".