520540024 has 32 divisors (see below), whose sum is σ = 1020121200. Its totient is φ = 248693760.

The previous prime is 520540019. The next prime is 520540049. The reversal of 520540024 is 420045025.

It is a junction number, because it is equal to n+sod(n) for n = 520539977 and 520540004.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10939 + ... + 34069.

Almost surely, 2^520540024 is an apocalyptic number.

It is an amenable number.

520540024 is a deficient number, since it is larger than the sum of its proper divisors (499581176).

520540024 is a wasteful number, since it uses less digits than its factorization.

520540024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23263 (or 23259 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 520540024 is about 22815.3462388805. The cubic root of 520540024 is about 804.4234257187.

Adding to 520540024 its reverse (420045025), we get a palindrome (940585049).

The spelling of 520540024 in words is "five hundred twenty million, five hundred forty thousand, twenty-four".