256460255 has 16 divisors (see below), whose sum is σ = 313996800. Its totient is φ = 201038112.

The previous prime is 256460227. The next prime is 256460257. The reversal of 256460255 is 552064652.

It is a cyclic number.

It is not a de Polignac number, because 256460255 - 2⁸ = 256459999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256460257) 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 15 ways as a sum of consecutive naturals, for example, 64742 + ... + 68588.

It is an arithmetic number, because the mean of its divisors is an integer number (19624800).

Almost surely, 2^256460255 is an apocalyptic number.

256460255 is a deficient number, since it is larger than the sum of its proper divisors (57536545).

256460255 is a wasteful number, since it uses less digits than its factorization.

256460255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 256460255 is about 16014.3765098739. The cubic root of 256460255 is about 635.3407186315.

The spelling of 256460255 in words is "two hundred fifty-six million, four hundred sixty thousand, two hundred fifty-five".