504821263 has 2 divisors, whose sum is σ = 504821264. Its totient is φ = 504821262.

The previous prime is 504821257. The next prime is 504821281. The reversal of 504821263 is 362128405.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504821263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504821243) 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, 252410631 + 252410632.

It is an arithmetic number, because the mean of its divisors is an integer number (252410632).

Almost surely, 2^504821263 is an apocalyptic number.

504821263 is a deficient number, since it is larger than the sum of its proper divisors (1).

504821263 is an equidigital number, since it uses as much as digits as its factorization.

504821263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 504821263 is about 22468.2278562418. The cubic root of 504821263 is about 796.2434626225.

Adding to 504821263 its reverse (362128405), we get a palindrome (866949668).

The spelling of 504821263 in words is "five hundred four million, eight hundred twenty-one thousand, two hundred sixty-three".