2065555349 has 24 divisors (see below), whose sum is σ = 2450736000. Its totient is φ = 1725709440.

The previous prime is 2065555333. The next prime is 2065555351. The reversal of 2065555349 is 9435555602.

It is not a de Polignac number, because 2065555349 - 2⁴ = 2065555333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065555309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441977 + ... + 446625.

It is an arithmetic number, because the mean of its divisors is an integer number (102114000).

Almost surely, 2^2065555349 is an apocalyptic number.

It is an amenable number.

2065555349 is a deficient number, since it is larger than the sum of its proper divisors (385180651).

2065555349 is a wasteful number, since it uses less digits than its factorization.

2065555349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The square root of 2065555349 is about 45448.3811482873. The cubic root of 2065555349 is about 1273.5390877469.

It can be divided in two parts, 20655553 and 49, that added together give a palindrome (20655602).

The spelling of 2065555349 in words is "two billion, sixty-five million, five hundred fifty-five thousand, three hundred forty-nine".