256275075 has 24 divisors (see below), whose sum is σ = 484238848. Its totient is φ = 117154080.

The previous prime is 256275049. The next prime is 256275079. The reversal of 256275075 is 570572652.

256275075 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 256275075 - 2⁵ = 256275043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256275079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243547 + ... + 244596.

Almost surely, 2^256275075 is an apocalyptic number.

256275075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256275075 is a deficient number, since it is larger than the sum of its proper divisors (227963773).

256275075 is a wasteful number, since it uses less digits than its factorization.

256275075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488163 (or 488158 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 256275075 is about 16008.5937858389. The cubic root of 256275075 is about 635.1877635169.

The spelling of 256275075 in words is "two hundred fifty-six million, two hundred seventy-five thousand, seventy-five".