255543503 has 4 divisors (see below), whose sum is σ = 255582360. Its totient is φ = 255504648.

The previous prime is 255543481. The next prime is 255543517. The reversal of 255543503 is 305345552.

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 255543503 - 2¹⁰ = 255542479 is a prime.

It is a super-2 number, since 2×255543503² = 130604963851022018, which contains 22 as substring.

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 255543503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255543523) 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, 6848 + ... + 23621.

It is an arithmetic number, because the mean of its divisors is an integer number (63895590).

Almost surely, 2^255543503 is an apocalyptic number.

255543503 is a deficient number, since it is larger than the sum of its proper divisors (38857).

255543503 is an equidigital number, since it uses as much as digits as its factorization.

255543503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38856.

The product of its (nonzero) digits is 45000, while the sum is 32.

The square root of 255543503 is about 15985.7281035303. The cubic root of 255543503 is about 634.5827775730.

The spelling of 255543503 in words is "two hundred fifty-five million, five hundred forty-three thousand, five hundred three".