256700585 has 8 divisors (see below), whose sum is σ = 321433920. Its totient is φ = 196431664.

The previous prime is 256700569. The next prime is 256700611. The reversal of 256700585 is 585007652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256700585 - 2⁴ = 256700569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115975 + ... + 1116204.

It is an arithmetic number, because the mean of its divisors is an integer number (40179240).

Almost surely, 2^256700585 is an apocalyptic number.

It is an amenable number.

256700585 is a deficient number, since it is larger than the sum of its proper divisors (64733335).

256700585 is a wasteful number, since it uses less digits than its factorization.

256700585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232207.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 256700585 is about 16021.8783230931. The cubic root of 256700585 is about 635.5391168379.

The spelling of 256700585 in words is "two hundred fifty-six million, seven hundred thousand, five hundred eighty-five".