504502000561 has 16 divisors (see below), whose sum is σ = 562376581200. Its totient is φ = 449370206208.

The previous prime is 504502000517. The next prime is 504502000571. The reversal of 504502000561 is 165000205405.

It can be written as a sum of positive squares in 8 ways, for example, as 115706104336 + 388795896225 = 340156^2 + 623535^2 .

It is not a de Polignac number, because 504502000561 - 2¹⁹ = 504501476273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504502000571) 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 15 ways as a sum of consecutive naturals, for example, 245485 + ... + 1034053.

It is an arithmetic number, because the mean of its divisors is an integer number (35148536325).

Almost surely, 2^504502000561 is an apocalyptic number.

It is an amenable number.

504502000561 is a deficient number, since it is larger than the sum of its proper divisors (57874580639).

504502000561 is a wasteful number, since it uses less digits than its factorization.

504502000561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790308.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 504502000561 its reverse (165000205405), we get a palindrome (669502205966).

The spelling of 504502000561 in words is "five hundred four billion, five hundred two million, five hundred sixty-one", and thus it is an aban number.