504504121 has 12 divisors (see below), whose sum is σ = 584650800. Its totient is φ = 431658560.

The previous prime is 504504059. The next prime is 504504127. The reversal of 504504121 is 121405405.

It is not a de Polignac number, because 504504121 - 2¹⁵ = 504471353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504504092 and 504504101.

It is not an unprimeable number, because it can be changed into a prime (504504127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76171 + ... + 82528.

It is an arithmetic number, because the mean of its divisors is an integer number (48720900).

Almost surely, 2^504504121 is an apocalyptic number.

It is an amenable number.

504504121 is a deficient number, since it is larger than the sum of its proper divisors (80146679).

504504121 is a wasteful number, since it uses less digits than its factorization.

504504121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158744 (or 158727 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 504504121 is about 22461.1691815008. The cubic root of 504504121 is about 796.0766873289.

Adding to 504504121 its reverse (121405405), we get a palindrome (625909526).

The spelling of 504504121 in words is "five hundred four million, five hundred four thousand, one hundred twenty-one".