256568325 has 48 divisors (see below), whose sum is σ = 458720640. Its totient is φ = 125786880.

The previous prime is 256568317. The next prime is 256568327. The reversal of 256568325 is 523865652.

256568325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256568325 - 2³ = 256568317 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 349659 + ... + 350391.

It is an arithmetic number, because the mean of its divisors is an integer number (9556680).

Almost surely, 2^256568325 is an apocalyptic number.

256568325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256568325 is a deficient number, since it is larger than the sum of its proper divisors (202152315).

256568325 is a wasteful number, since it uses less digits than its factorization.

256568325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1113 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 256568325 is about 16017.7503102027. The cubic root of 256568325 is about 635.4299483503.

The spelling of 256568325 in words is "two hundred fifty-six million, five hundred sixty-eight thousand, three hundred twenty-five".