12556073 has 4 divisors (see below), whose sum is σ = 12728148. Its totient is φ = 12384000.

The previous prime is 12556067. The next prime is 12556087. The reversal of 12556073 is 37065521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37065521 = 599 ⋅61879.

It can be written as a sum of positive squares in 2 ways, for example, as 6165289 + 6390784 = 2483^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 12556073 - 2⁸ = 12555817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12556573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85928 + ... + 86073.

It is an arithmetic number, because the mean of its divisors is an integer number (3182037).

Almost surely, 2^12556073 is an apocalyptic number.

It is an amenable number.

12556073 is a deficient number, since it is larger than the sum of its proper divisors (172075).

12556073 is an equidigital number, since it uses as much as digits as its factorization.

12556073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172074.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 12556073 is about 3543.4549524440. The cubic root of 12556073 is about 232.4259478198.

The spelling of 12556073 in words is "twelve million, five hundred fifty-six thousand, seventy-three".