520899 has 8 divisors (see below), whose sum is σ = 697872. Its totient is φ = 345600.

The previous prime is 520889. The next prime is 520913. The reversal of 520899 is 998025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520899 - 2⁵ = 520867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (87234).

2⁵²⁰⁸⁹⁹ is an apocalyptic number.

520899 is a deficient number, since it is larger than the sum of its proper divisors (176973).

520899 is a wasteful number, since it uses less digits than its factorization.

520899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 520899 is about 721.7333302543. The cubic root of 520899 is about 80.4608299334.

The spelling of 520899 in words is "five hundred twenty thousand, eight hundred ninety-nine".