255963540783 has 16 divisors (see below), whose sum is σ = 344762395776. Its totient is φ = 168904490400.

The previous prime is 255963540779. The next prime is 255963540787. The reversal of 255963540783 is 387045369552.

It is an interprime number because it is at equal distance from previous prime (255963540779) and next prime (255963540787).

It is not a de Polignac number, because 255963540783 - 2² = 255963540779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255963540787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955660 + ... + 1193822.

It is an arithmetic number, because the mean of its divisors is an integer number (21547649736).

Almost surely, 2^255963540783 is an apocalyptic number.

255963540783 is a deficient number, since it is larger than the sum of its proper divisors (88798854993).

255963540783 is a wasteful number, since it uses less digits than its factorization.

255963540783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241814.

The product of its (nonzero) digits is 27216000, while the sum is 57.

The spelling of 255963540783 in words is "two hundred fifty-five billion, nine hundred sixty-three million, five hundred forty thousand, seven hundred eighty-three".