2566156 has 12 divisors (see below), whose sum is σ = 4686192. Its totient is φ = 1227248.

The previous prime is 2566141. The next prime is 2566163. The reversal of 2566156 is 6516652.

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, 13855 + ... + 14038.

It is an arithmetic number, because the mean of its divisors is an integer number (390516).

2^2566156 is an apocalyptic number.

It is an amenable number.

2566156 is a deficient number, since it is larger than the sum of its proper divisors (2120036).

2566156 is a wasteful number, since it uses less digits than its factorization.

2566156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27920 (or 27918 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 2566156 is about 1601.9225948840. The cubic root of 2566156 is about 136.9076401659.

The spelling of 2566156 in words is "two million, five hundred sixty-six thousand, one hundred fifty-six".