493564500503 has 2 divisors, whose sum is σ = 493564500504. Its totient is φ = 493564500502.

The previous prime is 493564500479. The next prime is 493564500571. The reversal of 493564500503 is 305005465394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493564500503 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493564500103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246782250251 + 246782250252.

It is an arithmetic number, because the mean of its divisors is an integer number (246782250252).

Almost surely, 2^493564500503 is an apocalyptic number.

493564500503 is a deficient number, since it is larger than the sum of its proper divisors (1).

493564500503 is an equidigital number, since it uses as much as digits as its factorization.

493564500503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 44.

Adding to 493564500503 its reverse (305005465394), we get a palindrome (798569965897).

The spelling of 493564500503 in words is "four hundred ninety-three billion, five hundred sixty-four million, five hundred thousand, five hundred three".