520489105 has 8 divisors (see below), whose sum is σ = 625609512. Its totient is φ = 415709568.

The previous prime is 520489093. The next prime is 520489111. The reversal of 520489105 is 501984025.

It can be written as a sum of positive squares in 4 ways, for example, as 101761 + 520387344 = 319^2 + 22812^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520489105 - 2⁹ = 520488593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81844 + ... + 87973.

It is an arithmetic number, because the mean of its divisors is an integer number (78201189).

Almost surely, 2^520489105 is an apocalyptic number.

It is an amenable number.

520489105 is a deficient number, since it is larger than the sum of its proper divisors (105120407).

520489105 is a wasteful number, since it uses less digits than its factorization.

520489105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170435.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 520489105 is about 22814.2303179397. The cubic root of 520489105 is about 804.3971954129.

The spelling of 520489105 in words is "five hundred twenty million, four hundred eighty-nine thousand, one hundred five".