520452216 has 80 divisors (see below), whose sum is σ = 1482564600. Its totient is φ = 170531136.

The previous prime is 520452203. The next prime is 520452221. The reversal of 520452216 is 612254025.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 520452216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31426 + ... + 45038.

Almost surely, 2^520452216 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 520452216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741282300).

520452216 is an abundant number, since it is smaller than the sum of its proper divisors (962112384).

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

520452216 is a wasteful number, since it uses less digits than its factorization.

520452216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13690 (or 13677 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 520452216 is about 22813.4218389088. The cubic root of 520452216 is about 804.3781914229.

The spelling of 520452216 in words is "five hundred twenty million, four hundred fifty-two thousand, two hundred sixteen".