522243242342225 has 6 divisors (see below), whose sum is σ = 647581620504390. Its totient is φ = 417794593873760.

The previous prime is 522243242342189. The next prime is 522243242342233.

522243242342225 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 82975465973569 + 439267776368656 = 9109087^2 + 20958716^2 .

It is not a de Polignac number, because 522243242342225 - 2⁶ = 522243242342161 is a prime.

It is a super-2 number, since 2×522243242342225² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10444864846820 + ... + 10444864846869.

It is an arithmetic number, because the mean of its divisors is an integer number (107930270084065).

Almost surely, 2^{522243242342225} is an apocalyptic number.

It is an amenable number.

522243242342225 is a deficient number, since it is larger than the sum of its proper divisors (125338378162165).

522243242342225 is a wasteful number, since it uses less digits than its factorization.

522243242342225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20889729693699 (or 20889729693694 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 44.

The spelling of 522243242342225 in words is "five hundred twenty-two trillion, two hundred forty-three billion, two hundred forty-two million, three hundred forty-two thousand, two hundred twenty-five".