520862563 has 16 divisors (see below), whose sum is σ = 571580800. Its totient is φ = 474552000.

The previous prime is 520862497. The next prime is 520862567. The reversal of 520862563 is 365268025.

It is a happy number.

It is not a de Polignac number, because 520862563 - 2²⁵ = 487308131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520862567) 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, 172063 + ... + 175063.

It is an arithmetic number, because the mean of its divisors is an integer number (35723800).

Almost surely, 2^520862563 is an apocalyptic number.

520862563 is a deficient number, since it is larger than the sum of its proper divisors (50718237).

520862563 is an equidigital number, since it uses as much as digits as its factorization.

520862563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 520862563 is about 22822.4136103086. The cubic root of 520862563 is about 804.5895380540.

The spelling of 520862563 in words is "five hundred twenty million, eight hundred sixty-two thousand, five hundred sixty-three".