52433432221 has 4 divisors (see below), whose sum is σ = 52434172000. Its totient is φ = 52432692444.

The previous prime is 52433432167. The next prime is 52433432263. The reversal of 52433432221 is 12223433425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52433432221 - 2¹⁷ = 52433301149 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 (52433435221) 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, 250791 + ... + 409588.

It is an arithmetic number, because the mean of its divisors is an integer number (13108543000).

Almost surely, 2^52433432221 is an apocalyptic number.

It is an amenable number.

52433432221 is a deficient number, since it is larger than the sum of its proper divisors (739779).

52433432221 is an equidigital number, since it uses as much as digits as its factorization.

52433432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739778.

The product of its digits is 34560, while the sum is 31.

Adding to 52433432221 its reverse (12223433425), we get a palindrome (64656865646).

The spelling of 52433432221 in words is "fifty-two billion, four hundred thirty-three million, four hundred thirty-two thousand, two hundred twenty-one".