522531540543 has 4 divisors (see below), whose sum is σ = 696708720728. Its totient is φ = 348354360360.

The previous prime is 522531540523. The next prime is 522531540581. The reversal of 522531540543 is 345045135225.

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

It is not a de Polignac number, because 522531540543 - 2¹⁴ = 522531524159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522531540523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87088590088 + ... + 87088590093.

It is an arithmetic number, because the mean of its divisors is an integer number (174177180182).

Almost surely, 2^522531540543 is an apocalyptic number.

522531540543 is a deficient number, since it is larger than the sum of its proper divisors (174177180185).

522531540543 is a wasteful number, since it uses less digits than its factorization.

522531540543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174177180184.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 522531540543 its reverse (345045135225), we get a palindrome (867576675768).

The spelling of 522531540543 in words is "five hundred twenty-two billion, five hundred thirty-one million, five hundred forty thousand, five hundred forty-three".