256230633 has 8 divisors (see below), whose sum is σ = 341895168. Its totient is φ = 170693264.

The previous prime is 256230581. The next prime is 256230677. The reversal of 256230633 is 336032652.

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 256230633 - 2²⁶ = 189121769 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 256230633.

It is not an unprimeable number, because it can be changed into a prime (256232633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26985 + ... + 35222.

It is an arithmetic number, because the mean of its divisors is an integer number (42736896).

Almost surely, 2^256230633 is an apocalyptic number.

It is an amenable number.

256230633 is a deficient number, since it is larger than the sum of its proper divisors (85664535).

256230633 is a wasteful number, since it uses less digits than its factorization.

256230633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63583.

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 256230633 is about 16007.2056587026. The cubic root of 256230633 is about 635.1510443178.

The spelling of 256230633 in words is "two hundred fifty-six million, two hundred thirty thousand, six hundred thirty-three".