256206275 has 24 divisors (see below), whose sum is σ = 346852800. Its totient is φ = 186589440.

The previous prime is 256206233. The next prime is 256206281. The reversal of 256206275 is 572602652.

It is not a de Polignac number, because 256206275 - 2⁶ = 256206211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18326 + ... + 29124.

It is an arithmetic number, because the mean of its divisors is an integer number (14452200).

Almost surely, 2^256206275 is an apocalyptic number.

256206275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256206275 is a deficient number, since it is larger than the sum of its proper divisors (90646525).

256206275 is a wasteful number, since it uses less digits than its factorization.

256206275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10895 (or 10890 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 256206275 is about 16006.4447957690. Note that the first 3 decimals coincide. The cubic root of 256206275 is about 635.1309172690.

The spelling of 256206275 in words is "two hundred fifty-six million, two hundred six thousand, two hundred seventy-five".