520720059 has 4 divisors (see below), whose sum is σ = 694293416. Its totient is φ = 347146704.

The previous prime is 520720033. The next prime is 520720063. The reversal of 520720059 is 950027025.

It is a happy number.

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

It is not a de Polignac number, because 520720059 - 2⁹ = 520719547 is a prime.

It is a super-2 number, since 2×520720059² = 542298759689926962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520720559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86786674 + ... + 86786679.

It is an arithmetic number, because the mean of its divisors is an integer number (173573354).

Almost surely, 2^520720059 is an apocalyptic number.

520720059 is a deficient number, since it is larger than the sum of its proper divisors (173573357).

520720059 is a wasteful number, since it uses less digits than its factorization.

520720059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173573356.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 520720059 is about 22819.2913781300. The cubic root of 520720059 is about 804.5161548536.

The spelling of 520720059 in words is "five hundred twenty million, seven hundred twenty thousand, fifty-nine".