12556007 has 4 divisors (see below), whose sum is σ = 12567240. Its totient is φ = 12544776.

The previous prime is 12555997. The next prime is 12556039. The reversal of 12556007 is 70065521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12556007 - 2¹² = 12551911 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, 3728 + ... + 6245.

It is an arithmetic number, because the mean of its divisors is an integer number (3141810).

Almost surely, 2^12556007 is an apocalyptic number.

12556007 is a deficient number, since it is larger than the sum of its proper divisors (11233).

12556007 is an equidigital number, since it uses as much as digits as its factorization.

12556007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 12556007 is about 3543.4456394871. The cubic root of 12556007 is about 232.4255405763.

The spelling of 12556007 in words is "twelve million, five hundred fifty-six thousand, seven".