255742763 has 4 divisors (see below), whose sum is σ = 255902928. Its totient is φ = 255582600.

The previous prime is 255742759. The next prime is 255742771. The reversal of 255742763 is 367247552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255742763 - 2² = 255742759 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 255742763.

It is not an unprimeable number, because it can be changed into a prime (255742703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77663 + ... + 80888.

It is an arithmetic number, because the mean of its divisors is an integer number (63975732).

Almost surely, 2^255742763 is an apocalyptic number.

255742763 is a deficient number, since it is larger than the sum of its proper divisors (160165).

255742763 is a wasteful number, since it uses less digits than its factorization.

255742763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160164.

The product of its digits is 352800, while the sum is 41.

The square root of 255742763 is about 15991.9593233600. The cubic root of 255742763 is about 634.7476733231.

The spelling of 255742763 in words is "two hundred fifty-five million, seven hundred forty-two thousand, seven hundred sixty-three".