6522131543 has 4 divisors (see below), whose sum is σ = 6524225760. Its totient is φ = 6520037328.

The previous prime is 6522131537. The next prime is 6522131591. The reversal of 6522131543 is 3451312256.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6522131543 - 2⁶ = 6522131479 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 (6522131593) 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 in 3 ways as a sum of consecutive naturals, for example, 1042430 + ... + 1048667.

It is an arithmetic number, because the mean of its divisors is an integer number (1631056440).

Almost surely, 2^6522131543 is an apocalyptic number.

6522131543 is a deficient number, since it is larger than the sum of its proper divisors (2094217).

6522131543 is a wasteful number, since it uses less digits than its factorization.

6522131543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094216.

The product of its digits is 21600, while the sum is 32.

The square root of 6522131543 is about 80759.7148521464. The cubic root of 6522131543 is about 1868.3712874878.

Adding to 6522131543 its reverse (3451312256), we get a palindrome (9973443799).

The spelling of 6522131543 in words is "six billion, five hundred twenty-two million, one hundred thirty-one thousand, five hundred forty-three".