522441021 has 16 divisors (see below), whose sum is σ = 727459200. Its totient is φ = 332882880.

The previous prime is 522441019. The next prime is 522441053. The reversal of 522441021 is 120144225.

It is not a de Polignac number, because 522441021 - 2¹ = 522441019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522441001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117955 + ... + 122303.

It is an arithmetic number, because the mean of its divisors is an integer number (45466200).

Almost surely, 2^522441021 is an apocalyptic number.

It is an amenable number.

522441021 is a deficient number, since it is larger than the sum of its proper divisors (205018179).

522441021 is a wasteful number, since it uses less digits than its factorization.

522441021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 522441021 is about 22856.9687622834. The cubic root of 522441021 is about 805.4014797120.

Adding to 522441021 its reverse (120144225), we get a palindrome (642585246).

The spelling of 522441021 in words is "five hundred twenty-two million, four hundred forty-one thousand, twenty-one".