65273633 has 2 divisors, whose sum is σ = 65273634. Its totient is φ = 65273632.

The previous prime is 65273617. The next prime is 65273711. The reversal of 65273633 is 33637256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33373729 + 31899904 = 5777^2 + 5648^2 .

It is a cyclic number.

It is not a de Polignac number, because 65273633 - 2⁴ = 65273617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65273593 and 65273602.

It is not a weakly prime, because it can be changed into another prime (65273833) 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, 32636816 + 32636817.

It is an arithmetic number, because the mean of its divisors is an integer number (32636817).

Almost surely, 2^65273633 is an apocalyptic number.

It is an amenable number.

65273633 is a deficient number, since it is larger than the sum of its proper divisors (1).

65273633 is an equidigital number, since it uses as much as digits as its factorization.

65273633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 35.

The square root of 65273633 is about 8079.2099242438. The cubic root of 65273633 is about 402.6359927800.

The spelling of 65273633 in words is "sixty-five million, two hundred seventy-three thousand, six hundred thirty-three".