520115473 has 4 divisors (see below), whose sum is σ = 520169328. Its totient is φ = 520061620.

The previous prime is 520115471. The next prime is 520115483. The reversal of 520115473 is 374511025.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 520115473 - 2¹ = 520115471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520115471) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8011 + ... + 33232.

It is an arithmetic number, because the mean of its divisors is an integer number (130042332).

Almost surely, 2^520115473 is an apocalyptic number.

It is an amenable number.

520115473 is a deficient number, since it is larger than the sum of its proper divisors (53855).

520115473 is a wasteful number, since it uses less digits than its factorization.

520115473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53854.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 520115473 is about 22806.0402744536. The cubic root of 520115473 is about 804.2046710643.

Adding to 520115473 its reverse (374511025), we get a palindrome (894626498).

The spelling of 520115473 in words is "five hundred twenty million, one hundred fifteen thousand, four hundred seventy-three".