256795 has 32 divisors (see below), whose sum is σ = 414720. Its totient is φ = 147840.

The previous prime is 256771. The next prime is 256799. The reversal of 256795 is 597652.

It is not a de Polignac number, because 256795 - 2¹¹ = 254747 is a prime.

Its product of digits (18900) is a multiple of the sum of its prime divisors (75).

256795 is a lucky number.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 256795.

It is not an unprimeable number, because it can be changed into a prime (256799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8841 + ... + 8869.

It is an arithmetic number, because the mean of its divisors is an integer number (12960).

2²⁵⁶⁷⁹⁵ is an apocalyptic number.

256795 is a deficient number, since it is larger than the sum of its proper divisors (157925).

256795 is a wasteful number, since it uses less digits than its factorization.

256795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75.

The product of its digits is 18900, while the sum is 34.

The square root of 256795 is about 506.7494449923. The cubic root of 256795 is about 63.5617024816.

It can be divided in two parts, 2567 and 95, that added together give a palindrome (2662).

The spelling of 256795 in words is "two hundred fifty-six thousand, seven hundred ninety-five".