520014989 has 16 divisors (see below), whose sum is σ = 601099632. Its totient is φ = 445575168.

The previous prime is 520014977. The next prime is 520015007. The reversal of 520014989 is 989410025.

It can be written as a sum of positive squares in 8 ways, for example, as 6086089 + 513928900 = 2467^2 + 22670^2 .

It is not a de Polignac number, because 520014989 - 2⁴ = 520014973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520014589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17 + ... + 32249.

It is an arithmetic number, because the mean of its divisors is an integer number (37568727).

Almost surely, 2^520014989 is an apocalyptic number.

It is an amenable number.

520014989 is a deficient number, since it is larger than the sum of its proper divisors (81084643).

520014989 is a wasteful number, since it uses less digits than its factorization.

520014989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32336.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 520014989 is about 22803.8371551807. The cubic root of 520014989 is about 804.1528781382.

The spelling of 520014989 in words is "five hundred twenty million, fourteen thousand, nine hundred eighty-nine".