256057763 has 8 divisors (see below), whose sum is σ = 275994768. Its totient is φ = 236155104.

The previous prime is 256057721. The next prime is 256057843. The reversal of 256057763 is 367750652.

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 256057763 - 2⁸ = 256057507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256057763.

It is not an unprimeable number, because it can be changed into a prime (256057163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8120 + ... + 24042.

It is an arithmetic number, because the mean of its divisors is an integer number (34499346).

Almost surely, 2^256057763 is an apocalyptic number.

256057763 is a deficient number, since it is larger than the sum of its proper divisors (19937005).

256057763 is a wasteful number, since it uses less digits than its factorization.

256057763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17173.

The product of its (nonzero) digits is 264600, while the sum is 41.

The square root of 256057763 is about 16001.8049919376. The cubic root of 256057763 is about 635.0081739911.

The spelling of 256057763 in words is "two hundred fifty-six million, fifty-seven thousand, seven hundred sixty-three".