520430241 has 4 divisors (see below), whose sum is σ = 693906992. Its totient is φ = 346953492.

The previous prime is 520430237. The next prime is 520430243. The reversal of 520430241 is 142034025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 520430241 - 2² = 520430237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520430243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86738371 + ... + 86738376.

It is an arithmetic number, because the mean of its divisors is an integer number (173476748).

Almost surely, 2^520430241 is an apocalyptic number.

It is an amenable number.

520430241 is a deficient number, since it is larger than the sum of its proper divisors (173476751).

520430241 is a wasteful number, since it uses less digits than its factorization.

520430241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173476750.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 520430241 is about 22812.9402094513. The cubic root of 520430241 is about 804.3668702046.

Adding to 520430241 its reverse (142034025), we get a palindrome (662464266).

The spelling of 520430241 in words is "five hundred twenty million, four hundred thirty thousand, two hundred forty-one".