255503 has 2 divisors, whose sum is σ = 255504. Its totient is φ = 255502.

The previous prime is 255499. The next prime is 255511. The reversal of 255503 is 305552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255503 - 2² = 255499 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 (255523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127751 + 127752.

It is an arithmetic number, because the mean of its divisors is an integer number (127752).

2²⁵⁵⁵⁰³ is an apocalyptic number.

255503 is a deficient number, since it is larger than the sum of its proper divisors (1).

255503 is an equidigital number, since it uses as much as digits as its factorization.

255503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 255503 is about 505.4730457700. The cubic root of 255503 is about 63.4549249212.

The spelling of 255503 in words is "two hundred fifty-five thousand, five hundred three".