256583922 has 16 divisors (see below), whose sum is σ = 586477632. Its totient is φ = 73309680.

The previous prime is 256583911. The next prime is 256583953. The reversal of 256583922 is 229385652.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 6109141 = 256583922 / (2 + 5 + 6 + 5 + 8 + 3 + 9 + 2 + 2).

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, 3054529 + ... + 3054612.

It is an arithmetic number, because the mean of its divisors is an integer number (36654852).

Almost surely, 2^256583922 is an apocalyptic number.

256583922 is an abundant number, since it is smaller than the sum of its proper divisors (329893710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256583922 is a wasteful number, since it uses less digits than its factorization.

256583922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109153.

The product of its digits is 259200, while the sum is 42.

The square root of 256583922 is about 16018.2371689272. The cubic root of 256583922 is about 635.4428241929.

The spelling of 256583922 in words is "two hundred fifty-six million, five hundred eighty-three thousand, nine hundred twenty-two".