256068267 has 48 divisors (see below), whose sum is σ = 436972032. Its totient is φ = 132148800.

The previous prime is 256068259. The next prime is 256068299. The reversal of 256068267 is 762860652.

It is not a de Polignac number, because 256068267 - 2³ = 256068259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256068217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88392 + ... + 91242.

It is an arithmetic number, because the mean of its divisors is an integer number (9103584).

Almost surely, 2^256068267 is an apocalyptic number.

256068267 is a deficient number, since it is larger than the sum of its proper divisors (180903765).

256068267 is a wasteful number, since it uses less digits than its factorization.

256068267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 256068267 is about 16002.1332015453. The cubic root of 256068267 is about 635.0168569729.

The spelling of 256068267 in words is "two hundred fifty-six million, sixty-eight thousand, two hundred sixty-seven".