503564424217 has 2 divisors, whose sum is σ = 503564424218. Its totient is φ = 503564424216.

The previous prime is 503564424191. The next prime is 503564424229. The reversal of 503564424217 is 712424465305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497143447056 + 6420977161 = 705084^2 + 80131^2 .

It is a cyclic number.

It is not a de Polignac number, because 503564424217 - 2⁷ = 503564424089 is a prime.

It is not a weakly prime, because it can be changed into another prime (503564424247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251782212108 + 251782212109.

It is an arithmetic number, because the mean of its divisors is an integer number (251782212109).

Almost surely, 2^503564424217 is an apocalyptic number.

It is an amenable number.

503564424217 is a deficient number, since it is larger than the sum of its proper divisors (1).

503564424217 is an equidigital number, since it uses as much as digits as its factorization.

503564424217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 503564424217 in words is "five hundred three billion, five hundred sixty-four million, four hundred twenty-four thousand, two hundred seventeen".