520422331 has 32 divisors (see below), whose sum is σ = 649313280. Its totient is φ = 413471520.

The previous prime is 520422319. The next prime is 520422341. The reversal of 520422331 is 133224025.

It is not a de Polignac number, because 520422331 - 2²¹ = 518325179 is a prime.

It is a super-2 number, since 2×520422331² = 541678805206947122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520422341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327966 + ... + 329548.

It is an arithmetic number, because the mean of its divisors is an integer number (20291040).

Almost surely, 2^520422331 is an apocalyptic number.

520422331 is a deficient number, since it is larger than the sum of its proper divisors (128890949).

520422331 is a wasteful number, since it uses less digits than its factorization.

520422331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 520422331 is about 22812.7668422750. The cubic root of 520422331 is about 804.3627950032.

Adding to 520422331 its reverse (133224025), we get a palindrome (653646356).

The spelling of 520422331 in words is "five hundred twenty million, four hundred twenty-two thousand, three hundred thirty-one".