256068423 has 24 divisors (see below), whose sum is σ = 404869920. Its totient is φ = 154992960.

The previous prime is 256068409. The next prime is 256068427. The reversal of 256068423 is 324860652.

256068423 is a `hidden beast` number, since 2 + 5 + 606 + 8 + 42 + 3 = 666.

It is not a de Polignac number, because 256068423 - 2⁵ = 256068391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256068427) 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, 10803 + ... + 25076.

It is an arithmetic number, because the mean of its divisors is an integer number (16869580).

Almost surely, 2^256068423 is an apocalyptic number.

256068423 is a deficient number, since it is larger than the sum of its proper divisors (148801497).

256068423 is a wasteful number, since it uses less digits than its factorization.

256068423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35959 (or 35956 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 256068423 is about 16002.1380758947. The cubic root of 256068423 is about 635.0169859263.

The spelling of 256068423 in words is "two hundred fifty-six million, sixty-eight thousand, four hundred twenty-three".