520858 has 24 divisors (see below), whose sum is σ = 895968. Its totient is φ = 226512.

The previous prime is 520853. The next prime is 520867. The reversal of 520858 is 858025.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

520858 is a modest number, since divided by 858 gives 52 as remainder.

It is not an unprimeable number, because it can be changed into a prime (520853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7741 + ... + 7807.

It is an arithmetic number, because the mean of its divisors is an integer number (37332).

2⁵²⁰⁸⁵⁸ is an apocalyptic number.

520858 is a deficient number, since it is larger than the sum of its proper divisors (375110).

520858 is a wasteful number, since it uses less digits than its factorization.

520858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 520858 is about 721.7049258527. The cubic root of 520858 is about 80.4587188520.

It can be divided in two parts, 520 and 858, that added together give a triangular number (1378 = T₅₂).

The spelling of 520858 in words is "five hundred twenty thousand, eight hundred fifty-eight".