255803043 has 4 divisors (see below), whose sum is σ = 341070728. Its totient is φ = 170535360.

The previous prime is 255803021. The next prime is 255803047. The reversal of 255803043 is 340308552.

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

It is not a de Polignac number, because 255803043 - 2¹⁷ = 255671971 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 255803043.

It is not an unprimeable number, because it can be changed into a prime (255803047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42633838 + ... + 42633843.

It is an arithmetic number, because the mean of its divisors is an integer number (85267682).

Almost surely, 2^255803043 is an apocalyptic number.

255803043 is a deficient number, since it is larger than the sum of its proper divisors (85267685).

255803043 is an equidigital number, since it uses as much as digits as its factorization.

255803043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85267684.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 255803043 is about 15993.8439094547. The cubic root of 255803043 is about 634.7975405979.

The spelling of 255803043 in words is "two hundred fifty-five million, eight hundred three thousand, forty-three".