64055839 has 2 divisors, whose sum is σ = 64055840. Its totient is φ = 64055838.

The previous prime is 64055833. The next prime is 64055891. The reversal of 64055839 is 93855046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64055839 - 2¹¹ = 64053791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64055833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32027919 + 32027920.

It is an arithmetic number, because the mean of its divisors is an integer number (32027920).

Almost surely, 2^64055839 is an apocalyptic number.

64055839 is a deficient number, since it is larger than the sum of its proper divisors (1).

64055839 is an equidigital number, since it uses as much as digits as its factorization.

64055839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 64055839 is about 8003.4891766029. The cubic root of 64055839 is about 400.1162974340.

The spelling of 64055839 in words is "sixty-four million, fifty-five thousand, eight hundred thirty-nine".