504323553321 has 16 divisors (see below), whose sum is σ = 853881148800. Its totient is φ = 288184887504.

The previous prime is 504323553319. The next prime is 504323553361. The reversal of 504323553321 is 123355323405.

504323553321 is a `hidden beast` number, since 5 + 0 + 4 + 323 + 5 + 5 + 3 + 321 = 666.

It is not a de Polignac number, because 504323553321 - 2¹ = 504323553319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (504323553361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1334189106 + ... + 1334189483.

It is an arithmetic number, because the mean of its divisors is an integer number (53367571800).

Almost surely, 2^504323553321 is an apocalyptic number.

It is an amenable number.

504323553321 is a deficient number, since it is larger than the sum of its proper divisors (349557595479).

504323553321 is a wasteful number, since it uses less digits than its factorization.

504323553321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668378605 (or 2668378599 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 504323553321 its reverse (123355323405), we get a palindrome (627678876726).

The spelling of 504323553321 in words is "five hundred four billion, three hundred twenty-three million, five hundred fifty-three thousand, three hundred twenty-one".