256329475 has 12 divisors (see below), whose sum is σ = 334578040. Its totient is φ = 194270400.

The previous prime is 256329473. The next prime is 256329497. The reversal of 256329475 is 574923652.

256329475 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 256329475 - 2¹ = 256329473 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (256329473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269346 + ... + 270295.

Almost surely, 2^256329475 is an apocalyptic number.

256329475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256329475 is a deficient number, since it is larger than the sum of its proper divisors (78248565).

256329475 is a wasteful number, since it uses less digits than its factorization.

256329475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539670 (or 539665 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The square root of 256329475 is about 16010.2927830818. The cubic root of 256329475 is about 635.2327045107.

The spelling of 256329475 in words is "two hundred fifty-six million, three hundred twenty-nine thousand, four hundred seventy-five".