520040524 has 24 divisors (see below), whose sum is σ = 930682368. Its totient is φ = 254146320.

The previous prime is 520040509. The next prime is 520040537. The reversal of 520040524 is 425040025.

It is a junction number, because it is equal to n+sod(n) for n = 520040495 and 520040504.

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, 192487 + ... + 195169.

It is an arithmetic number, because the mean of its divisors is an integer number (38778432).

Almost surely, 2^520040524 is an apocalyptic number.

It is an amenable number.

520040524 is a deficient number, since it is larger than the sum of its proper divisors (410641844).

520040524 is a wasteful number, since it uses less digits than its factorization.

520040524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765 (or 3763 counting only the distinct ones).

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

The square root of 520040524 is about 22804.3970321515. The cubic root of 520040524 is about 804.1660403919.

Adding to 520040524 its reverse (425040025), we get a palindrome (945080549).

The spelling of 520040524 in words is "five hundred twenty million, forty thousand, five hundred twenty-four".