255143503 has 2 divisors, whose sum is σ = 255143504. Its totient is φ = 255143502.

The previous prime is 255143489. The next prime is 255143507. The reversal of 255143503 is 305341552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255143503 is a prime.

It is a super-2 number, since 2×255143503² = 130196414246222018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255143507) 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 as a sum of consecutive naturals, namely, 127571751 + 127571752.

It is an arithmetic number, because the mean of its divisors is an integer number (127571752).

Almost surely, 2^255143503 is an apocalyptic number.

255143503 is a deficient number, since it is larger than the sum of its proper divisors (1).

255143503 is an equidigital number, since it uses as much as digits as its factorization.

255143503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 255143503 is about 15973.2120439190. The cubic root of 255143503 is about 634.2515023834.

The spelling of 255143503 in words is "two hundred fifty-five million, one hundred forty-three thousand, five hundred three".