32057321 has 2 divisors, whose sum is σ = 32057322. Its totient is φ = 32057320.

The previous prime is 32057297. The next prime is 32057341. The reversal of 32057321 is 12375023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18181696 + 13875625 = 4264^2 + 3725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32057321 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32057341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16028660 + 16028661.

It is an arithmetic number, because the mean of its divisors is an integer number (16028661).

Almost surely, 2^32057321 is an apocalyptic number.

It is an amenable number.

32057321 is a deficient number, since it is larger than the sum of its proper divisors (1).

32057321 is an equidigital number, since it uses as much as digits as its factorization.

32057321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 32057321 is about 5661.9184911124. The cubic root of 32057321 is about 317.6696627672.

The spelling of 32057321 in words is "thirty-two million, fifty-seven thousand, three hundred twenty-one".