256850 has 24 divisors (see below), whose sum is σ = 522288. Its totient is φ = 93200.

The previous prime is 256831. The next prime is 256873. The reversal of 256850 is 58652.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 8.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 317 + ... + 783.

It is an arithmetic number, because the mean of its divisors is an integer number (21762).

2²⁵⁶⁸⁵⁰ is an apocalyptic number.

256850 is an abundant number, since it is smaller than the sum of its proper divisors (265438).

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

256850 is a wasteful number, since it uses less digits than its factorization.

256850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 256850 is about 506.8037095365. The cubic root of 256850 is about 63.5662400103.

The spelling of 256850 in words is "two hundred fifty-six thousand, eight hundred fifty".