256568322 has 8 divisors (see below), whose sum is σ = 513136656. Its totient is φ = 85522772.

The previous prime is 256568317. The next prime is 256568327. The reversal of 256568322 is 223865652.

256568322 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 (256568317) and next prime (256568327).

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

256568322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (256568327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21380688 + ... + 21380699.

It is an arithmetic number, because the mean of its divisors is an integer number (64142082).

Almost surely, 2^256568322 is an apocalyptic number.

256568322 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.

256568322 is a wasteful number, since it uses less digits than its factorization.

256568322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42761392.

The product of its digits is 172800, while the sum is 39.

The square root of 256568322 is about 16017.7502165566. The cubic root of 256568322 is about 635.4299458736.

The spelling of 256568322 in words is "two hundred fifty-six million, five hundred sixty-eight thousand, three hundred twenty-two".