520009168 has 60 divisors (see below), whose sum is σ = 1175549760. Its totient is φ = 222188736.

The previous prime is 520009153. The next prime is 520009207. The reversal of 520009168 is 861900025.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 327705 + ... + 329287.

It is an arithmetic number, because the mean of its divisors is an integer number (19592496).

Almost surely, 2^520009168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520009168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587774880).

520009168 is an abundant number, since it is smaller than the sum of its proper divisors (655540592).

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

520009168 is a wasteful number, since it uses less digits than its factorization.

520009168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 2011 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 520009168 is about 22803.7095227948. The cubic root of 520009168 is about 804.1498775892.

The spelling of 520009168 in words is "five hundred twenty million, nine thousand, one hundred sixty-eight".