2005256 has 16 divisors (see below), whose sum is σ = 4101840. Its totient is φ = 911440.

The previous prime is 2005249. The next prime is 2005261. The reversal of 2005256 is 6525002.

It is a happy 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, 11306 + ... + 11481.

It is an arithmetic number, because the mean of its divisors is an integer number (256365).

2^2005256 is an apocalyptic number.

It is an amenable number.

2005256 is an abundant number, since it is smaller than the sum of its proper divisors (2096584).

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

2005256 is a wasteful number, since it uses less digits than its factorization.

2005256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22804 (or 22800 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2005256 is about 1416.0706197079. The cubic root of 2005256 is about 126.1023775311.

The spelling of 2005256 in words is "two million, five thousand, two hundred fifty-six".