520522416 has 80 divisors (see below), whose sum is σ = 1496853600. Its totient is φ = 173187072.

The previous prime is 520522393. The next prime is 520522427. The reversal of 520522416 is 614225025.

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 520522416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400680 + ... + 401976.

It is an arithmetic number, because the mean of its divisors is an integer number (18710670).

Almost surely, 2^520522416 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 520522416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748426800).

520522416 is an abundant number, since it is smaller than the sum of its proper divisors (976331184).

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

520522416 is a wasteful number, since it uses less digits than its factorization.

520522416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2231 counting only the distinct ones).

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

The square root of 520522416 is about 22814.9603549951. The cubic root of 520522416 is about 804.4143553644.

The spelling of 520522416 in words is "five hundred twenty million, five hundred twenty-two thousand, four hundred sixteen".