256270761 has 12 divisors (see below), whose sum is σ = 386263488. Its totient is φ = 163418904.

The previous prime is 256270753. The next prime is 256270771. The reversal of 256270761 is 167072652.

256270761 is a `hidden beast` number, since 25 + 627 + 0 + 7 + 6 + 1 = 666.

256270761 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 256270761 - 2³ = 256270753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256270711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618805 + ... + 619218.

It is an arithmetic number, because the mean of its divisors is an integer number (32188624).

Almost surely, 2^256270761 is an apocalyptic number.

It is an amenable number.

256270761 is a deficient number, since it is larger than the sum of its proper divisors (129992727).

256270761 is a wasteful number, since it uses less digits than its factorization.

256270761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238052 (or 1238049 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 256270761 is about 16008.4590451424. The cubic root of 256270761 is about 635.1841993579.

The spelling of 256270761 in words is "two hundred fifty-six million, two hundred seventy thousand, seven hundred sixty-one".