256002 has 8 divisors (see below), whose sum is σ = 512016. Its totient is φ = 85332.

The previous prime is 255989. The next prime is 256019. The reversal of 256002 is 200652.

It is a sphenic number, since it is the product of 3 distinct primes.

256002 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21328 + ... + 21339.

It is an arithmetic number, because the mean of its divisors is an integer number (64002).

2²⁵⁶⁰⁰² is an apocalyptic number.

256002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256002 is a wasteful number, since it uses less digits than its factorization.

256002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42672.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 256002 is about 505.9664020466. The cubic root of 256002 is about 63.4962074326.

Adding to 256002 its reverse (200652), we get a palindrome (456654).

The spelling of 256002 in words is "two hundred fifty-six thousand, two".