2666256 has 20 divisors (see below), whose sum is σ = 6887952. Its totient is φ = 888736.

The previous prime is 2666227. The next prime is 2666267. The reversal of 2666256 is 6526662.

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, 27726 + ... + 27821.

2^2666256 is an apocalyptic number.

It is an amenable number.

2666256 is an abundant number, since it is smaller than the sum of its proper divisors (4221696).

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

2666256 is a wasteful number, since it uses less digits than its factorization.

2666256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55558 (or 55552 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2666256 is about 1632.8674165406. The cubic root of 2666256 is about 138.6651359956.

The spelling of 2666256 in words is "two million, six hundred sixty-six thousand, two hundred fifty-six".