520444363 has 2 divisors, whose sum is σ = 520444364. Its totient is φ = 520444362.

The previous prime is 520444361. The next prime is 520444367. The reversal of 520444363 is 363444025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520444363 - 2¹ = 520444361 is a prime.

Together with 520444361, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (520444361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260222181 + 260222182.

It is an arithmetic number, because the mean of its divisors is an integer number (260222182).

Almost surely, 2^520444363 is an apocalyptic number.

520444363 is a deficient number, since it is larger than the sum of its proper divisors (1).

520444363 is an equidigital number, since it uses as much as digits as its factorization.

520444363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 520444363 is about 22813.2497246666. The cubic root of 520444363 is about 804.3741457017.

Adding to 520444363 its reverse (363444025), we get a palindrome (883888388).

The spelling of 520444363 in words is "five hundred twenty million, four hundred forty-four thousand, three hundred sixty-three".