65585905 has 16 divisors (see below), whose sum is σ = 98123904. Its totient is φ = 40884480.

The previous prime is 65585887. The next prime is 65585909. The reversal of 65585905 is 50958556.

It is not a de Polignac number, because 65585905 - 2⁹ = 65585393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65585909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84792 + ... + 85561.

It is an arithmetic number, because the mean of its divisors is an integer number (6132744).

Almost surely, 2^65585905 is an apocalyptic number.

It is an amenable number.

65585905 is a deficient number, since it is larger than the sum of its proper divisors (32537999).

65585905 is a wasteful number, since it uses less digits than its factorization.

65585905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170376.

The product of its (nonzero) digits is 270000, while the sum is 43.

The square root of 65585905 is about 8098.5125177405. The cubic root of 65585905 is about 403.2770478265.

The spelling of 65585905 in words is "sixty-five million, five hundred eighty-five thousand, nine hundred five".