255934863 has 16 divisors (see below), whose sum is σ = 379587840. Its totient is φ = 170431992.

The previous prime is 255934849. The next prime is 255934891. The reversal of 255934863 is 368439552.

255934863 is a `hidden beast` number, since 2 + 559 + 34 + 8 + 63 = 666.

It is not a de Polignac number, because 255934863 - 2⁸ = 255934607 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255938863) 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 15 ways as a sum of consecutive naturals, for example, 21720 + ... + 31362.

It is an arithmetic number, because the mean of its divisors is an integer number (23724240).

Almost surely, 2^255934863 is an apocalyptic number.

255934863 is a deficient number, since it is larger than the sum of its proper divisors (123652977).

255934863 is an equidigital number, since it uses as much as digits as its factorization.

255934863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10635 (or 10629 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 255934863 is about 15997.9643392527. The cubic root of 255934863 is about 634.9065628117.

The spelling of 255934863 in words is "two hundred fifty-five million, nine hundred thirty-four thousand, eight hundred sixty-three".