520433131 has 4 divisors (see below), whose sum is σ = 533126664. Its totient is φ = 507739600.

The previous prime is 520433117. The next prime is 520433143. The reversal of 520433131 is 131334025.

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

It is a cyclic number.

It is not a de Polignac number, because 520433131 - 2²³ = 512044523 is a prime.

It is a super-2 number, since 2×520433131² = 541701287684926322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520433191) 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, 6346705 + ... + 6346786.

It is an arithmetic number, because the mean of its divisors is an integer number (133281666).

Almost surely, 2^520433131 is an apocalyptic number.

520433131 is a deficient number, since it is larger than the sum of its proper divisors (12693533).

520433131 is a wasteful number, since it uses less digits than its factorization.

520433131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12693532.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 520433131 is about 22813.0035506068. The cubic root of 520433131 is about 804.3683591111.

Adding to 520433131 its reverse (131334025), we get a palindrome (651767156).

The spelling of 520433131 in words is "five hundred twenty million, four hundred thirty-three thousand, one hundred thirty-one".