503404504564 has 12 divisors (see below), whose sum is σ = 948723874084. Its totient is φ = 232340540544.

The previous prime is 503404504553. The next prime is 503404504567. The reversal of 503404504564 is 465405404305.

It can be written as a sum of positive squares in 2 ways, for example, as 20229372900 + 483175131664 = 142230^2 + 695108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503404504567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4840427877 + ... + 4840427980.

Almost surely, 2^503404504564 is an apocalyptic number.

It is an amenable number.

503404504564 is a deficient number, since it is larger than the sum of its proper divisors (445319369520).

503404504564 is a wasteful number, since it uses less digits than its factorization.

503404504564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680855874 (or 9680855872 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 503404504564 its reverse (465405404305), we get a palindrome (968809908869).

The spelling of 503404504564 in words is "five hundred three billion, four hundred four million, five hundred four thousand, five hundred sixty-four".