522026 has 4 divisors (see below), whose sum is σ = 783042. Its totient is φ = 261012.

The previous prime is 522017. The next prime is 522037. The reversal of 522026 is 620225.

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

It can be written as a sum of positive squares in only one way, i.e., 491401 + 30625 = 701^2 + 175^2 .

It is a super-2 number, since 2×522026² = 545022289352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 521995 and 522013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130505 + ... + 130508.

2⁵²²⁰²⁶ is an apocalyptic number.

522026 is a deficient number, since it is larger than the sum of its proper divisors (261016).

522026 is a wasteful number, since it uses less digits than its factorization.

522026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261015.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 522026 is about 722.5136676908. The cubic root of 522026 is about 80.5188156062.

The spelling of 522026 in words is "five hundred twenty-two thousand, twenty-six".