256255802063 has 8 divisors (see below), whose sum is σ = 269758984320. Its totient is φ = 242754223320.

The previous prime is 256255802057. The next prime is 256255802083. The reversal of 256255802063 is 360208552652.

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 256255802063 - 2⁸ = 256255801807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256255802083) 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, 65645 + ... + 718902.

It is an arithmetic number, because the mean of its divisors is an integer number (33719873040).

Almost surely, 2^256255802063 is an apocalyptic number.

256255802063 is a deficient number, since it is larger than the sum of its proper divisors (13503182257).

256255802063 is a wasteful number, since it uses less digits than its factorization.

256255802063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801757.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 256255802063 in words is "two hundred fifty-six billion, two hundred fifty-five million, eight hundred two thousand, sixty-three".