256600 has 24 divisors (see below), whose sum is σ = 597060. Its totient is φ = 102560.

The previous prime is 256589. The next prime is 256603. The reversal of 256600 is 6652.

256600 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442 + ... + 841.

2²⁵⁶⁶⁰⁰ is an apocalyptic number.

256600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256600 is an abundant number, since it is smaller than the sum of its proper divisors (340460).

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

256600 is a wasteful number, since it uses less digits than its factorization.

256600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 256600 is about 506.5570056766. The cubic root of 256600 is about 63.5456096571.

The spelling of 256600 in words is "two hundred fifty-six thousand, six hundred".