520330000 has 100 divisors (see below), whose sum is σ = 1281924028. Its totient is φ = 204480000.

The previous prime is 520329949. The next prime is 520330037. The reversal of 520330000 is 33025.

It can be written as a sum of positive squares in 10 ways, for example, as 517653504 + 2676496 = 22752^2 + 1636^2 .

It is a tau number, because it is divible by the number of its divisors (100).

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 19 ways as a sum of consecutive naturals, for example, 609574 + ... + 610426.

Almost surely, 2^520330000 is an apocalyptic number.

520330000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640962014).

520330000 is an abundant number, since it is smaller than the sum of its proper divisors (761594028).

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

520330000 is an equidigital number, since it uses as much as digits as its factorization.

520330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 520330000 is about 22810.7430830300. The cubic root of 520330000 is about 804.3152233744.

Adding to 520330000 its reverse (33025), we get a palindrome (520363025).

The spelling of 520330000 in words is "five hundred twenty million, three hundred thirty thousand".