503040520163 has 2 divisors, whose sum is σ = 503040520164. Its totient is φ = 503040520162.

The previous prime is 503040520141. The next prime is 503040520181. The reversal of 503040520163 is 361025040305.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 503040520163 - 2¹⁰ = 503040519139 is a prime.

It is not a weakly prime, because it can be changed into another prime (503040520193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251520260081 + 251520260082.

It is an arithmetic number, because the mean of its divisors is an integer number (251520260082).

Almost surely, 2^503040520163 is an apocalyptic number.

503040520163 is a deficient number, since it is larger than the sum of its proper divisors (1).

503040520163 is an equidigital number, since it uses as much as digits as its factorization.

503040520163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 503040520163 its reverse (361025040305), we get a palindrome (864065560468).

The spelling of 503040520163 in words is "five hundred three billion, forty million, five hundred twenty thousand, one hundred sixty-three".