65255321 has 2 divisors, whose sum is σ = 65255322. Its totient is φ = 65255320.

The previous prime is 65255303. The next prime is 65255339. The reversal of 65255321 is 12355256.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (65255303) and next prime (65255339).

It can be written as a sum of positive squares in only one way, i.e., 61011721 + 4243600 = 7811^2 + 2060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65255321 is a prime.

It is not a weakly prime, because it can be changed into another prime (65255371) 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, 32627660 + 32627661.

It is an arithmetic number, because the mean of its divisors is an integer number (32627661).

Almost surely, 2^65255321 is an apocalyptic number.

It is an amenable number.

65255321 is a deficient number, since it is larger than the sum of its proper divisors (1).

65255321 is an equidigital number, since it uses as much as digits as its factorization.

65255321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 65255321 is about 8078.0765656188. The cubic root of 65255321 is about 402.5983371471.

The spelling of 65255321 in words is "sixty-five million, two hundred fifty-five thousand, three hundred twenty-one".