520771760 has 80 divisors (see below), whose sum is σ = 1296345600. Its totient is φ = 193966848.

The previous prime is 520771739. The next prime is 520771777. The reversal of 520771760 is 67177025.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 520771760.

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, 86777 + ... + 92583.

It is an arithmetic number, because the mean of its divisors is an integer number (16204320).

Almost surely, 2^520771760 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 520771760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648172800).

520771760 is an abundant number, since it is smaller than the sum of its proper divisors (775573840).

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

520771760 is a wasteful number, since it uses less digits than its factorization.

520771760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898 (or 5892 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 520771760 is about 22820.4241853652. The cubic root of 520771760 is about 804.5427801087.

It can be divided in two parts, 5207 and 71760, that added together give a palindrome (76967).

The spelling of 520771760 in words is "five hundred twenty million, seven hundred seventy-one thousand, seven hundred sixty".