6503255903 has 2 divisors, whose sum is σ = 6503255904. Its totient is φ = 6503255902.

The previous prime is 6503255851. The next prime is 6503255929. The reversal of 6503255903 is 3095523056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6503255903 - 2²⁸ = 6234820447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6503255963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3251627951 + 3251627952.

It is an arithmetic number, because the mean of its divisors is an integer number (3251627952).

Almost surely, 2^6503255903 is an apocalyptic number.

6503255903 is a deficient number, since it is larger than the sum of its proper divisors (1).

6503255903 is an equidigital number, since it uses as much as digits as its factorization.

6503255903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 38.

The square root of 6503255903 is about 80642.7672082252. The cubic root of 6503255903 is about 1866.5671339396.

Adding to 6503255903 its reverse (3095523056), we get a palindrome (9598778959).

The spelling of 6503255903 in words is "six billion, five hundred three million, two hundred fifty-five thousand, nine hundred three".