504995539 has 4 divisors (see below), whose sum is σ = 505276200. Its totient is φ = 504714880.

The previous prime is 504995537. The next prime is 504995551. The reversal of 504995539 is 935599405.

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

It is a cyclic number.

It is not a de Polignac number, because 504995539 - 2¹ = 504995537 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504995492 and 504995501.

It is not an unprimeable number, because it can be changed into a prime (504995537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137614 + ... + 141235.

It is an arithmetic number, because the mean of its divisors is an integer number (126319050).

Almost surely, 2^504995539 is an apocalyptic number.

504995539 is a deficient number, since it is larger than the sum of its proper divisors (280661).

504995539 is a wasteful number, since it uses less digits than its factorization.

504995539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280660.

The product of its (nonzero) digits is 1093500, while the sum is 49.

The square root of 504995539 is about 22472.1057980778. The cubic root of 504995539 is about 796.3350793131.

The spelling of 504995539 in words is "five hundred four million, nine hundred ninety-five thousand, five hundred thirty-nine".