504531 has 12 divisors (see below), whose sum is σ = 741520. Its totient is φ = 330480.

The previous prime is 504527. The next prime is 504547. The reversal of 504531 is 135405.

504531 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 504531 - 2² = 504527 is a prime.

It is a super-2 number, since 2×504531² = 509103059922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504521) 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, 90 + ... + 1008.

2⁵⁰⁴⁵³¹ is an apocalyptic number.

504531 is a deficient number, since it is larger than the sum of its proper divisors (236989).

504531 is a wasteful number, since it uses less digits than its factorization.

504531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 983 counting only the distinct ones).

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

The square root of 504531 is about 710.3034562777. The cubic root of 504531 is about 79.6090824885.

Adding to 504531 its reverse (135405), we get a palindrome (639936).

It can be divided in two parts, 504 and 531, that added together give a triangular number (1035 = T₄₅).

The spelling of 504531 in words is "five hundred four thousand, five hundred thirty-one".