256530327 has 8 divisors (see below), whose sum is σ = 342376320. Its totient is φ = 170852280.

The previous prime is 256530299. The next prime is 256530331. The reversal of 256530327 is 723035652.

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

It is not a de Polignac number, because 256530327 - 2¹⁵ = 256497559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256535327) by changing a digit.

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, 38377 + ... + 44562.

It is an arithmetic number, because the mean of its divisors is an integer number (42797040).

Almost surely, 2^256530327 is an apocalyptic number.

256530327 is a deficient number, since it is larger than the sum of its proper divisors (85845993).

256530327 is a wasteful number, since it uses less digits than its factorization.

256530327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83973.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 256530327 is about 16016.5641446597. The cubic root of 256530327 is about 635.3985775523.

Adding to 256530327 its reverse (723035652), we get a palindrome (979565979).

The spelling of 256530327 in words is "two hundred fifty-six million, five hundred thirty thousand, three hundred twenty-seven".