520278 has 16 divisors (see below), whose sum is σ = 1135296. Its totient is φ = 157640.

The previous prime is 520241. The next prime is 520279. The reversal of 520278 is 872025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3876 + ... + 4007.

It is an arithmetic number, because the mean of its divisors is an integer number (70956).

2⁵²⁰²⁷⁸ is an apocalyptic number.

520278 is an abundant number, since it is smaller than the sum of its proper divisors (615018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520278 is a wasteful number, since it uses less digits than its factorization.

520278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7899.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 520278 is about 721.3029876550. The cubic root of 520278 is about 80.4288428978.

The spelling of 520278 in words is "five hundred twenty thousand, two hundred seventy-eight".