521022 has 8 divisors (see below), whose sum is σ = 1042056. Its totient is φ = 173672.

The previous prime is 521021. The next prime is 521023. The reversal of 521022 is 220125.

521022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (521021) and next prime (521023).

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

521022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 520989 and 521007.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 521022.

It is not an unprimeable number, because it can be changed into a prime (521021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43413 + ... + 43424.

It is an arithmetic number, because the mean of its divisors is an integer number (130257).

2⁵²¹⁰²² is an apocalyptic number.

521022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

521022 is a wasteful number, since it uses less digits than its factorization.

521022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86842.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 521022 is about 721.8185367528. The cubic root of 521022 is about 80.4671625131.

Adding to 521022 its reverse (220125), we get a palindrome (741147).

The spelling of 521022 in words is "five hundred twenty-one thousand, twenty-two".