12586056 has 64 divisors (see below), whose sum is σ = 37862400. Its totient is φ = 3405888.

The previous prime is 12586051. The next prime is 12586097. The reversal of 12586056 is 65068521.

It is not an unprimeable number, because it can be changed into a prime (12586051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1221 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (591600).

Almost surely, 2^12586056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12586056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18931200).

12586056 is an abundant number, since it is smaller than the sum of its proper divisors (25276344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12586056 is a wasteful number, since it uses less digits than its factorization.

12586056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978 (or 3974 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 12586056 is about 3547.6831876592. The cubic root of 12586056 is about 232.6108062418.

The spelling of 12586056 in words is "twelve million, five hundred eighty-six thousand, fifty-six".