32543225221 has 4 divisors (see below), whose sum is σ = 35046550252. Its totient is φ = 30039900192.

The previous prime is 32543225219. The next prime is 32543225243. The reversal of 32543225221 is 12252234523.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19692508900 + 12850716321 = 140330^2 + 113361^2 .

It is a cyclic number.

It is not a de Polignac number, because 32543225221 - 2¹ = 32543225219 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 (32543225321) 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, 1251662496 + ... + 1251662521.

It is an arithmetic number, because the mean of its divisors is an integer number (8761637563).

Almost surely, 2^32543225221 is an apocalyptic number.

It is an amenable number.

32543225221 is a deficient number, since it is larger than the sum of its proper divisors (2503325031).

32543225221 is a wasteful number, since it uses less digits than its factorization.

32543225221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503325030.

The product of its digits is 28800, while the sum is 31.

Adding to 32543225221 its reverse (12252234523), we get a palindrome (44795459744).

The spelling of 32543225221 in words is "thirty-two billion, five hundred forty-three million, two hundred twenty-five thousand, two hundred twenty-one".