503521204323364 has 12 divisors (see below), whose sum is σ = 896097058542000. Its totient is φ = 247493473311368.

The previous prime is 503521204323343. The next prime is 503521204323419. The reversal of 503521204323364 is 463323402125305.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 503521204323364.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066782212314 + ... + 1066782212785.

It is an arithmetic number, because the mean of its divisors is an integer number (74674754878500).

Almost surely, 2^{503521204323364} is an apocalyptic number.

It is an amenable number.

503521204323364 is a deficient number, since it is larger than the sum of its proper divisors (392575854218636).

503521204323364 is a wasteful number, since it uses less digits than its factorization.

503521204323364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133564425162 (or 2133564425160 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 43.

Adding to 503521204323364 its reverse (463323402125305), we get a palindrome (966844606448669).

The spelling of 503521204323364 in words is "five hundred three trillion, five hundred twenty-one billion, two hundred four million, three hundred twenty-three thousand, three hundred sixty-four".