520641363 has 64 divisors (see below), whose sum is σ = 844185600. Its totient is φ = 281698560.

The previous prime is 520641343. The next prime is 520641403. The reversal of 520641363 is 363146025.

It is not a de Polignac number, because 520641363 - 2¹⁰ = 520640339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520641363.

It is not an unprimeable number, because it can be changed into a prime (520641323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1139031 + ... + 1139487.

It is an arithmetic number, because the mean of its divisors is an integer number (13190400).

Almost surely, 2^520641363 is an apocalyptic number.

520641363 is a deficient number, since it is larger than the sum of its proper divisors (323544237).

520641363 is a wasteful number, since it uses less digits than its factorization.

520641363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 520641363 is about 22817.5669824808. The cubic root of 520641363 is about 804.4756241872.

Adding to 520641363 its reverse (363146025), we get a palindrome (883787388).

The spelling of 520641363 in words is "five hundred twenty million, six hundred forty-one thousand, three hundred sixty-three".