520522443 has 60 divisors (see below), whose sum is σ = 909576360. Its totient is φ = 295783488.

The previous prime is 520522427. The next prime is 520522447. The reversal of 520522443 is 344225025.

It is a happy number.

It is not a de Polignac number, because 520522443 - 2⁴ = 520522427 is a prime.

It is a super-2 number, since 2×520522443² = 541887227333376498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (520522447) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1242088 + ... + 1242506.

It is an arithmetic number, because the mean of its divisors is an integer number (15159606).

Almost surely, 2^520522443 is an apocalyptic number.

520522443 is a deficient number, since it is larger than the sum of its proper divisors (389053917).

520522443 is a wasteful number, since it uses less digits than its factorization.

520522443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 520522443 is about 22814.9609467121. The cubic root of 520522443 is about 804.4143692730.

Adding to 520522443 its reverse (344225025), we get a palindrome (864747468).

The spelling of 520522443 in words is "five hundred twenty million, five hundred twenty-two thousand, four hundred forty-three".