256568206 has 16 divisors (see below), whose sum is σ = 393523200. Its totient is φ = 125400600.

The previous prime is 256568161. The next prime is 256568231. The reversal of 256568206 is 602865652.

It is a happy number.

256568206 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130531 + ... + 132481.

It is an arithmetic number, because the mean of its divisors is an integer number (24595200).

Almost surely, 2^256568206 is an apocalyptic number.

256568206 is a deficient number, since it is larger than the sum of its proper divisors (136954994).

256568206 is a wasteful number, since it uses less digits than its factorization.

256568206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 256568206 is about 16017.7465955733. The cubic root of 256568206 is about 635.4298501098.

The spelling of 256568206 in words is "two hundred fifty-six million, five hundred sixty-eight thousand, two hundred six".