32053636721 has 2 divisors, whose sum is σ = 32053636722. Its totient is φ = 32053636720.

The previous prime is 32053636661. The next prime is 32053636729. The reversal of 32053636721 is 12763635023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31840476721 + 213160000 = 178439^2 + 14600^2 .

It is a cyclic number.

It is not a de Polignac number, because 32053636721 - 2¹⁰ = 32053635697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32053636729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16026818360 + 16026818361.

It is an arithmetic number, because the mean of its divisors is an integer number (16026818361).

Almost surely, 2^32053636721 is an apocalyptic number.

It is an amenable number.

32053636721 is a deficient number, since it is larger than the sum of its proper divisors (1).

32053636721 is an equidigital number, since it uses as much as digits as its factorization.

32053636721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 32053636721 in words is "thirty-two billion, fifty-three million, six hundred thirty-six thousand, seven hundred twenty-one".