520005303 has 24 divisors (see below), whose sum is σ = 758493840. Its totient is φ = 343284480.

The previous prime is 520005271. The next prime is 520005329. The reversal of 520005303 is 303500025.

It is not a de Polignac number, because 520005303 - 2⁵ = 520005271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520005383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514863 + ... + 515871.

It is an arithmetic number, because the mean of its divisors is an integer number (31603910).

Almost surely, 2^520005303 is an apocalyptic number.

520005303 is a deficient number, since it is larger than the sum of its proper divisors (238488537).

520005303 is a wasteful number, since it uses less digits than its factorization.

520005303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 520005303 is about 22803.6247776532. The cubic root of 520005303 is about 804.1478852866.

Adding to 520005303 its reverse (303500025), we get a palindrome (823505328).

The spelling of 520005303 in words is "five hundred twenty million, five thousand, three hundred three".