520224303 has 4 divisors (see below), whose sum is σ = 693632408. Its totient is φ = 346816200.

The previous prime is 520224251. The next prime is 520224307. The reversal of 520224303 is 303422025.

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

It is not a de Polignac number, because 520224303 - 2⁶ = 520224239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520224303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520224307) 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, 86704048 + ... + 86704053.

It is an arithmetic number, because the mean of its divisors is an integer number (173408102).

Almost surely, 2^520224303 is an apocalyptic number.

520224303 is a deficient number, since it is larger than the sum of its proper divisors (173408105).

520224303 is a wasteful number, since it uses less digits than its factorization.

520224303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173408104.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 520224303 is about 22808.4261403544. The cubic root of 520224303 is about 804.2607582829.

Adding to 520224303 its reverse (303422025), we get a palindrome (823646328).

The spelling of 520224303 in words is "five hundred twenty million, two hundred twenty-four thousand, three hundred three".