65855459 has 2 divisors, whose sum is σ = 65855460. Its totient is φ = 65855458.

The previous prime is 65855443. The next prime is 65855483. The reversal of 65855459 is 95455856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65855459 - 2⁴ = 65855443 is a prime.

It is not a weakly prime, because it can be changed into another prime (65855359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32927729 + 32927730.

It is an arithmetic number, because the mean of its divisors is an integer number (32927730).

Almost surely, 2^65855459 is an apocalyptic number.

65855459 is a deficient number, since it is larger than the sum of its proper divisors (1).

65855459 is an equidigital number, since it uses as much as digits as its factorization.

65855459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080000, while the sum is 47.

The square root of 65855459 is about 8115.1376451666. The cubic root of 65855459 is about 403.8287738766.

The spelling of 65855459 in words is "sixty-five million, eight hundred fifty-five thousand, four hundred fifty-nine".