504345563 has 4 divisors (see below), whose sum is σ = 504827400. Its totient is φ = 503863728.

The previous prime is 504345521. The next prime is 504345571. The reversal of 504345563 is 365543405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504345563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504345593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239345 + ... + 241442.

It is an arithmetic number, because the mean of its divisors is an integer number (126206850).

Almost surely, 2^504345563 is an apocalyptic number.

504345563 is a deficient number, since it is larger than the sum of its proper divisors (481837).

504345563 is a wasteful number, since it uses less digits than its factorization.

504345563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481836.

The product of its (nonzero) digits is 108000, while the sum is 35.

The square root of 504345563 is about 22457.6393015829. The cubic root of 504345563 is about 795.9932803108.

Adding to 504345563 its reverse (365543405), we get a palindrome (869888968).

The spelling of 504345563 in words is "five hundred four million, three hundred forty-five thousand, five hundred sixty-three".