256075163 has 4 divisors (see below), whose sum is σ = 260415480. Its totient is φ = 251734848.

The previous prime is 256075153. The next prime is 256075181. The reversal of 256075163 is 361570652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256075163 - 2¹⁰ = 256074139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256075153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170070 + ... + 2170187.

It is an arithmetic number, because the mean of its divisors is an integer number (65103870).

Almost surely, 2^256075163 is an apocalyptic number.

256075163 is a deficient number, since it is larger than the sum of its proper divisors (4340317).

256075163 is an equidigital number, since it uses as much as digits as its factorization.

256075163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340316.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 256075163 is about 16002.3486713670. The cubic root of 256075163 is about 635.0225573238.

The spelling of 256075163 in words is "two hundred fifty-six million, seventy-five thousand, one hundred sixty-three".