520738560 has 216 divisors, whose sum is σ = 1908401040. Its totient is φ = 130646016.

The previous prime is 520738553. The next prime is 520738573. The reversal of 520738560 is 65837025.

520738560 is a `hidden beast` number, since 5 + 20 + 73 + 8 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 194511 + ... + 197169.

It is an arithmetic number, because the mean of its divisors is an integer number (8835190).

Almost surely, 2^520738560 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 520738560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954200520).

520738560 is an abundant number, since it is smaller than the sum of its proper divisors (1387662480).

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

520738560 is a wasteful number, since it uses less digits than its factorization.

520738560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 520738560 is about 22819.6967552157. The cubic root of 520738560 is about 804.5256827991.

The spelling of 520738560 in words is "five hundred twenty million, seven hundred thirty-eight thousand, five hundred sixty".