504513 has 12 divisors (see below), whose sum is σ = 754260. Its totient is φ = 324576.

The previous prime is 504479. The next prime is 504521. The reversal of 504513 is 315405.

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 199809 = 552^2 + 447^2 .

It is not a de Polignac number, because 504513 - 2⁹ = 504001 is a prime.

504513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (504523) 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, 706 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (62855).

2⁵⁰⁴⁵¹³ is an apocalyptic number.

It is an amenable number.

504513 is a deficient number, since it is larger than the sum of its proper divisors (249747).

504513 is a wasteful number, since it uses less digits than its factorization.

504513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 504513 is about 710.2907855238. The cubic root of 504513 is about 79.6081357475.

Adding to 504513 its reverse (315405), we get a palindrome (819918).

The spelling of 504513 in words is "five hundred four thousand, five hundred thirteen".