12556859 has 8 divisors (see below), whose sum is σ = 14435040. Its totient is φ = 10699776.

The previous prime is 12556811. The next prime is 12556867. The reversal of 12556859 is 95865521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12556859 is a prime.

It is a super-3 number, since 3×12556859³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12556879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3974 + ... + 6395.

It is an arithmetic number, because the mean of its divisors is an integer number (1804380).

Almost surely, 2^12556859 is an apocalyptic number.

12556859 is a deficient number, since it is larger than the sum of its proper divisors (1878181).

12556859 is a wasteful number, since it uses less digits than its factorization.

12556859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10549.

The product of its digits is 108000, while the sum is 41.

The square root of 12556859 is about 3543.5658594134. The cubic root of 12556859 is about 232.4307976107.

The spelling of 12556859 in words is "twelve million, five hundred fifty-six thousand, eight hundred fifty-nine".