504432531 has 6 divisors (see below), whose sum is σ = 728624780. Its totient is φ = 336288348.

The previous prime is 504432503. The next prime is 504432541. The reversal of 504432531 is 135234405.

It is not a de Polignac number, because 504432531 - 2⁵ = 504432499 is a prime.

It is a super-2 number, since 2×504432531² = 508904356662131922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504432495 and 504432504.

It is not an unprimeable number, because it can be changed into a prime (504432541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28024021 + ... + 28024038.

Almost surely, 2^504432531 is an apocalyptic number.

504432531 is a deficient number, since it is larger than the sum of its proper divisors (224192249).

504432531 is a wasteful number, since it uses less digits than its factorization.

504432531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56048065 (or 56048062 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 504432531 is about 22459.5754857477. The cubic root of 504432531 is about 796.0390306653.

Adding to 504432531 its reverse (135234405), we get a palindrome (639666936).

The spelling of 504432531 in words is "five hundred four million, four hundred thirty-two thousand, five hundred thirty-one".