2055985065 has 64 divisors (see below), whose sum is σ = 3823649280. Its totient is φ = 1046200320.

The previous prime is 2055985051. The next prime is 2055985091. The reversal of 2055985065 is 5605895502.

2055985065 is a `hidden beast` number, since 2 + 0 + 5 + 598 + 50 + 6 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2055985065 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2055985065.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 1989789 + ... + 1990821.

It is an arithmetic number, because the mean of its divisors is an integer number (59744520).

Almost surely, 2^2055985065 is an apocalyptic number.

It is an amenable number.

2055985065 is a deficient number, since it is larger than the sum of its proper divisors (1767664215).

2055985065 is a wasteful number, since it uses less digits than its factorization.

2055985065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The square root of 2055985065 is about 45342.9715060670. The cubic root of 2055985065 is about 1271.5691569946.

The spelling of 2055985065 in words is "two billion, fifty-five million, nine hundred eighty-five thousand, sixty-five".