256596 has 12 divisors (see below), whose sum is σ = 598752. Its totient is φ = 85528.

The previous prime is 256589. The next prime is 256603. The reversal of 256596 is 695652.

256596 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256589) and next prime (256603).

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 4.

It is a congruent number.

It is an unprimeable number.

256596 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10680 + ... + 10703.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2²⁵⁶⁵⁹⁶ is an apocalyptic number.

It is an amenable number.

256596 is an abundant number, since it is smaller than the sum of its proper divisors (342156).

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

256596 is a wasteful number, since it uses less digits than its factorization.

256596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21390 (or 21388 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 256596 is about 506.5530574382. The cubic root of 256596 is about 63.5452794625.

The spelling of 256596 in words is "two hundred fifty-six thousand, five hundred ninety-six".