520629863 has 16 divisors (see below), whose sum is σ = 587321280. Its totient is φ = 457906944.

The previous prime is 520629847. The next prime is 520629871. The reversal of 520629863 is 368926025.

It is a cyclic number.

It is not a de Polignac number, because 520629863 - 2⁴ = 520629847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520629863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520629163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77195 + ... + 83667.

It is an arithmetic number, because the mean of its divisors is an integer number (36707580).

Almost surely, 2^520629863 is an apocalyptic number.

520629863 is a deficient number, since it is larger than the sum of its proper divisors (66691417).

520629863 is a wasteful number, since it uses less digits than its factorization.

520629863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 520629863 is about 22817.3149822673. The cubic root of 520629863 is about 804.4697010198.

The spelling of 520629863 in words is "five hundred twenty million, six hundred twenty-nine thousand, eight hundred sixty-three".