2568856 has 16 divisors (see below), whose sum is σ = 4863240. Its totient is φ = 1272000.

The previous prime is 2568833. The next prime is 2568869. The reversal of 2568856 is 6588652.

It is a super-2 number, since 2×2568856² = 13198042297472, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁰ + 5⁴ + 6 + 8⁵ + 8⁷ + 5⁸ + 6⁶ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645 + ... + 2356.

2^2568856 is an apocalyptic number.

It is an amenable number.

2568856 is a deficient number, since it is larger than the sum of its proper divisors (2294384).

2568856 is a wasteful number, since it uses less digits than its factorization.

2568856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114 (or 3110 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 2568856 is about 1602.7651106759. The cubic root of 2568856 is about 136.9556394640.

The spelling of 2568856 in words is "two million, five hundred sixty-eight thousand, eight hundred fifty-six".