12556251 has 12 divisors (see below), whose sum is σ = 19203912. Its totient is φ = 7878336.

The previous prime is 12556241. The next prime is 12556253. The reversal of 12556251 is 15265521.

It is not a de Polignac number, because 12556251 - 2¹³ = 12548059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12556253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40881 + ... + 41186.

It is an arithmetic number, because the mean of its divisors is an integer number (1600326).

Almost surely, 2^12556251 is an apocalyptic number.

12556251 is a deficient number, since it is larger than the sum of its proper divisors (6647661).

12556251 is a wasteful number, since it uses less digits than its factorization.

12556251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82090 (or 82087 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 12556251 is about 3543.4800690846. The cubic root of 12556251 is about 232.4270461362.

The spelling of 12556251 in words is "twelve million, five hundred fifty-six thousand, two hundred fifty-one".