520271579 has 4 divisors (see below), whose sum is σ = 524014680. Its totient is φ = 516528480.

The previous prime is 520271561. The next prime is 520271581. The reversal of 520271579 is 975172025.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520271579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520271779) 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, 1871342 + ... + 1871619.

It is an arithmetic number, because the mean of its divisors is an integer number (131003670).

Almost surely, 2^520271579 is an apocalyptic number.

520271579 is a deficient number, since it is larger than the sum of its proper divisors (3743101).

520271579 is a wasteful number, since it uses less digits than its factorization.

520271579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743100.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 520271579 is about 22809.4624881868. The cubic root of 520271579 is about 804.2851202614.

The spelling of 520271579 in words is "five hundred twenty million, two hundred seventy-one thousand, five hundred seventy-nine".