520081216 has 28 divisors (see below), whose sum is σ = 1056042592. Its totient is φ = 253991808.

The previous prime is 520081193. The next prime is 520081217. The reversal of 520081216 is 612180025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520081217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91740 + ... + 97243.

Almost surely, 2^520081216 is an apocalyptic number.

It is an amenable number.

520081216 is an abundant number, since it is smaller than the sum of its proper divisors (535961376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520081216 is a wasteful number, since it uses less digits than its factorization.

520081216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189038 (or 189028 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 520081216 is about 22805.2892110580. The cubic root of 520081216 is about 804.1870145722.

The spelling of 520081216 in words is "five hundred twenty million, eighty-one thousand, two hundred sixteen".