32205550321 has 12 divisors (see below), whose sum is σ = 37557988788. Its totient is φ = 27535207392.

The previous prime is 32205550313. The next prime is 32205550343. The reversal of 32205550321 is 12305550223.

It can be written as a sum of positive squares in 2 ways, for example, as 23175799696 + 9029750625 = 152236^2 + 95025^2 .

It is not a de Polignac number, because 32205550321 - 2³ = 32205550313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32205550321.

It is not an unprimeable number, because it can be changed into a prime (32205550621) 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 11 ways as a sum of consecutive naturals, for example, 808326 + ... + 847231.

It is an arithmetic number, because the mean of its divisors is an integer number (3129832399).

Almost surely, 2^32205550321 is an apocalyptic number.

It is an amenable number.

32205550321 is a deficient number, since it is larger than the sum of its proper divisors (5352438467).

32205550321 is a wasteful number, since it uses less digits than its factorization.

32205550321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655968 (or 1655961 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 32205550321 in words is "thirty-two billion, two hundred five million, five hundred fifty thousand, three hundred twenty-one".