256274583 has 16 divisors (see below), whose sum is σ = 348812160. Its totient is φ = 167315616.

The previous prime is 256274581. The next prime is 256274611. The reversal of 256274583 is 385472652.

It is not a de Polignac number, because 256274583 - 2¹ = 256274581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256274581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46416 + ... + 51642.

It is an arithmetic number, because the mean of its divisors is an integer number (21800760).

Almost surely, 2^256274583 is an apocalyptic number.

256274583 is a deficient number, since it is larger than the sum of its proper divisors (92537577).

256274583 is a wasteful number, since it uses less digits than its factorization.

256274583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566.

The product of its digits is 403200, while the sum is 42.

The square root of 256274583 is about 16008.5784190852. The cubic root of 256274583 is about 635.1873570363.

The spelling of 256274583 in words is "two hundred fifty-six million, two hundred seventy-four thousand, five hundred eighty-three".