522522065538 has 126 divisors (see below), whose sum is σ = 1292430569241. Its totient is φ = 158248015200.

The previous prime is 522522065537. The next prime is 522522065539. The reversal of 522522065538 is 835560225225.

522522065538 is a `hidden beast` number, since 5 + 2 + 2 + 52 + 2 + 0 + 65 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (522522065537) and next prime (522522065539).

It can be written as a sum of positive squares in 2 ways, for example, as 490872588129 + 31649477409 = 700623^2 + 177903^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=511137.

It is a junction number, because it is equal to n+sod(n) for n = 522522065493 and 522522065502.

It is not an unprimeable number, because it can be changed into a prime (522522065537) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 303614518 + ... + 303616238.

Almost surely, 2^522522065538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522522065538

522522065538 is an abundant number, since it is smaller than the sum of its proper divisors (769908503703).

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

522522065538 is an frugal number, since it uses more digits than its factorization.

522522065538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484 (or 1737 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 522522065538 in words is "five hundred twenty-two billion, five hundred twenty-two million, sixty-five thousand, five hundred thirty-eight".