520252331430403 has 16 divisors (see below), whose sum is σ = 611250769424736. Its totient is φ = 436543073591040.

The previous prime is 520252331430347. The next prime is 520252331430449. The reversal of 520252331430403 is 304034133252025.

It is not a de Polignac number, because 520252331430403 - 2³⁷ = 520114892476931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520252331430493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132683500 + ... + 136548217.

It is an arithmetic number, because the mean of its divisors is an integer number (38203173089046).

Almost surely, 2^{520252331430403} is an apocalyptic number.

520252331430403 is a deficient number, since it is larger than the sum of its proper divisors (90998437994333).

520252331430403 is a wasteful number, since it uses less digits than its factorization.

520252331430403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269245254.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 520252331430403 its reverse (304034133252025), we get a palindrome (824286464682428).

The spelling of 520252331430403 in words is "five hundred twenty trillion, two hundred fifty-two billion, three hundred thirty-one million, four hundred thirty thousand, four hundred three".