255803144 has 16 divisors (see below), whose sum is σ = 480615120. Its totient is φ = 127639120.

The previous prime is 255803143. The next prime is 255803159. The reversal of 255803144 is 441308552.

It is a self number, because there is not a number n which added to its sum of digits gives 255803144.

It is not an unprimeable number, because it can be changed into a prime (255803143) 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, 28634 + ... + 36489.

It is an arithmetic number, because the mean of its divisors is an integer number (30038445).

Almost surely, 2^255803144 is an apocalyptic number.

It is an amenable number.

255803144 is a deficient number, since it is larger than the sum of its proper divisors (224811976).

255803144 is a wasteful number, since it uses less digits than its factorization.

255803144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65620 (or 65616 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 255803144 is about 15993.8470669192. The cubic root of 255803144 is about 634.7976241446.

The spelling of 255803144 in words is "two hundred fifty-five million, eight hundred three thousand, one hundred forty-four".