64955905 has 16 divisors (see below), whose sum is σ = 91491840. Its totient is φ = 43336512.

The previous prime is 64955893. The next prime is 64955921. The reversal of 64955905 is 50955946.

64955905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64955905 - 2⁷ = 64955777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23785 + ... + 26374.

It is an arithmetic number, because the mean of its divisors is an integer number (5718240).

Almost surely, 2^64955905 is an apocalyptic number.

It is an amenable number.

64955905 is a deficient number, since it is larger than the sum of its proper divisors (26535935).

64955905 is a wasteful number, since it uses less digits than its factorization.

64955905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50208.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 64955905 is about 8059.5226285432. The cubic root of 64955905 is about 401.9816353417.

The spelling of 64955905 in words is "sixty-four million, nine hundred fifty-five thousand, nine hundred five".