504563805 has 12 divisors (see below), whose sum is σ = 874577340. Its totient is φ = 269100672.

The previous prime is 504563803. The next prime is 504563819. The reversal of 504563805 is 508365405.

It can be written as a sum of positive squares in 2 ways, for example, as 145878084 + 358685721 = 12078^2 + 18939^2 .

It is not a de Polignac number, because 504563805 - 2¹ = 504563803 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 504563805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504563803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5606220 + ... + 5606309.

It is an arithmetic number, because the mean of its divisors is an integer number (72881445).

Almost surely, 2^504563805 is an apocalyptic number.

It is an amenable number.

504563805 is a deficient number, since it is larger than the sum of its proper divisors (370013535).

504563805 is a wasteful number, since it uses less digits than its factorization.

504563805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212540 (or 11212537 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 504563805 is about 22462.4977462436. The cubic root of 504563805 is about 796.1080786599.

The spelling of 504563805 in words is "five hundred four million, five hundred sixty-three thousand, eight hundred five".