520505536 has 14 divisors (see below), whose sum is σ = 1032878300. Its totient is φ = 260252736.

The previous prime is 520505443. The next prime is 520505539. The reversal of 520505536 is 635505025.

It is a junction number, because it is equal to n+sod(n) for n = 520505498 and 520505507.

It is not an unprimeable number, because it can be changed into a prime (520505539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4066386 + ... + 4066513.

Almost surely, 2^520505536 is an apocalyptic number.

It is an amenable number.

520505536 is a deficient number, since it is larger than the sum of its proper divisors (512372764).

520505536 is an equidigital number, since it uses as much as digits as its factorization.

520505536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8132911 (or 8132901 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 520505536 is about 22814.5904192909. The cubic root of 520505536 is about 804.4056598304.

The spelling of 520505536 in words is "five hundred twenty million, five hundred five thousand, five hundred thirty-six".