32501321 has 2 divisors, whose sum is σ = 32501322. Its totient is φ = 32501320.

The previous prime is 32501317. The next prime is 32501353. The reversal of 32501321 is 12310523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 14523721 = 4240^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 32501321 - 2² = 32501317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32501321.

It is not a weakly prime, because it can be changed into another prime (32503321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16250660 + 16250661.

It is an arithmetic number, because the mean of its divisors is an integer number (16250661).

Almost surely, 2^32501321 is an apocalyptic number.

It is an amenable number.

32501321 is a deficient number, since it is larger than the sum of its proper divisors (1).

32501321 is an equidigital number, since it uses as much as digits as its factorization.

32501321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 32501321 is about 5700.9929836828. The cubic root of 32501321 is about 319.1295386219.

Adding to 32501321 its reverse (12310523), we get a palindrome (44811844).

The spelling of 32501321 in words is "thirty-two million, five hundred one thousand, three hundred twenty-one".