256283 has 4 divisors (see below), whose sum is σ = 257640. Its totient is φ = 254928.

The previous prime is 256279. The next prime is 256301. The reversal of 256283 is 382652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256283 - 2² = 256279 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (256483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338 + ... + 791.

It is an arithmetic number, because the mean of its divisors is an integer number (64410).

2²⁵⁶²⁸³ is an apocalyptic number.

256283 is a deficient number, since it is larger than the sum of its proper divisors (1357).

256283 is a wasteful number, since it uses less digits than its factorization.

256283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 2880, while the sum is 26.

The square root of 256283 is about 506.2440123103. The cubic root of 256283 is about 63.5194310923.

The spelling of 256283 in words is "two hundred fifty-six thousand, two hundred eighty-three".