522035021 has 2 divisors, whose sum is σ = 522035022. Its totient is φ = 522035020.

The previous prime is 522034993. The next prime is 522035053. The reversal of 522035021 is 120530225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517062121 + 4972900 = 22739^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 522035021 - 2⁶ = 522034957 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 522034984 and 522035002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522035321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261017510 + 261017511.

It is an arithmetic number, because the mean of its divisors is an integer number (261017511).

Almost surely, 2^522035021 is an apocalyptic number.

It is an amenable number.

522035021 is a deficient number, since it is larger than the sum of its proper divisors (1).

522035021 is an equidigital number, since it uses as much as digits as its factorization.

522035021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 522035021 is about 22848.0857185017. The cubic root of 522035021 is about 805.1927941197.

Adding to 522035021 its reverse (120530225), we get a palindrome (642565246).

The spelling of 522035021 in words is "five hundred twenty-two million, thirty-five thousand, twenty-one".