520022 has 4 divisors (see below), whose sum is σ = 780036. Its totient is φ = 260010.

The previous prime is 520021. The next prime is 520031. The reversal of 520022 is 220025.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 519985 and 520012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130004 + ... + 130007.

It is an arithmetic number, because the mean of its divisors is an integer number (195009).

2⁵²⁰⁰²² is an apocalyptic number.

520022 is a deficient number, since it is larger than the sum of its proper divisors (260014).

520022 is a wasteful number, since it uses less digits than its factorization.

520022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260013.

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 520022 is about 721.1255091869. The cubic root of 520022 is about 80.4156492066.

Adding to 520022 its reverse (220025), we get a palindrome (740047).

The spelling of 520022 in words is "five hundred twenty thousand, twenty-two".