256260231 has 6 divisors (see below), whose sum is σ = 370153680. Its totient is φ = 170840148.

The previous prime is 256260217. The next prime is 256260233. The reversal of 256260231 is 132062652.

256260231 is a `hidden beast` number, since 2 + 5 + 626 + 0 + 2 + 31 = 666.

256260231 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 256260231 - 2¹⁹ = 255735943 is a prime.

It is a super-2 number, since 2×256260231² = 131338611984346722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256260195 and 256260204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256260233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14236671 + ... + 14236688.

It is an arithmetic number, because the mean of its divisors is an integer number (61692280).

Almost surely, 2^256260231 is an apocalyptic number.

256260231 is a deficient number, since it is larger than the sum of its proper divisors (113893449).

256260231 is a wasteful number, since it uses less digits than its factorization.

256260231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28473365 (or 28473362 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 256260231 is about 16008.1301531441. The cubic root of 256260231 is about 635.1754994693.

The spelling of 256260231 in words is "two hundred fifty-six million, two hundred sixty thousand, two hundred thirty-one".