12556063 has 4 divisors (see below), whose sum is σ = 13521928. Its totient is φ = 11590200.

The previous prime is 12556039. The next prime is 12556067. The reversal of 12556063 is 36065521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36065521 = 3491 ⋅10331.

It is a cyclic number.

It is not a de Polignac number, because 12556063 - 2⁹ = 12555551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482913 + ... + 482938.

It is an arithmetic number, because the mean of its divisors is an integer number (3380482).

Almost surely, 2^12556063 is an apocalyptic number.

12556063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12556063 is a deficient number, since it is larger than the sum of its proper divisors (965865).

12556063 is an equidigital number, since it uses as much as digits as its factorization.

12556063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965864.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 12556063 is about 3543.4535413915. The cubic root of 12556063 is about 232.4258861164.

The spelling of 12556063 in words is "twelve million, five hundred fifty-six thousand, sixty-three".