520728883 has 4 divisors (see below), whose sum is σ = 526097320. Its totient is φ = 515360448.

The previous prime is 520728881. The next prime is 520728893. The reversal of 520728883 is 388827025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520728883 - 2¹ = 520728881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520728881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684073 + ... + 2684266.

It is an arithmetic number, because the mean of its divisors is an integer number (131524330).

Almost surely, 2^520728883 is an apocalyptic number.

520728883 is a deficient number, since it is larger than the sum of its proper divisors (5368437).

520728883 is an equidigital number, since it uses as much as digits as its factorization.

520728883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368436.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 520728883 is about 22819.4847224910. The cubic root of 520728883 is about 804.5206992086.

The spelling of 520728883 in words is "five hundred twenty million, seven hundred twenty-eight thousand, eight hundred eighty-three".