255803143 has 2 divisors, whose sum is σ = 255803144. Its totient is φ = 255803142.

The previous prime is 255803101. The next prime is 255803159. The reversal of 255803143 is 341308552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255803143 - 2¹³ = 255794951 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255803183) 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 as a sum of consecutive naturals, namely, 127901571 + 127901572.

It is an arithmetic number, because the mean of its divisors is an integer number (127901572).

Almost surely, 2^255803143 is an apocalyptic number.

255803143 is a deficient number, since it is larger than the sum of its proper divisors (1).

255803143 is an equidigital number, since it uses as much as digits as its factorization.

255803143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 255803143 is about 15993.8470356572. The cubic root of 255803143 is about 634.7976233174.

The spelling of 255803143 in words is "two hundred fifty-five million, eight hundred three thousand, one hundred forty-three".