2005042055 has 16 divisors (see below), whose sum is σ = 2483822880. Its totient is φ = 1552846848.

The previous prime is 2005042037. The next prime is 2005042069. The reversal of 2005042055 is 5502405002.

It is a cyclic number.

It is not a de Polignac number, because 2005042055 - 2¹² = 2005037959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2005042055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16970 + ... + 65559.

It is an arithmetic number, because the mean of its divisors is an integer number (155238930).

Almost surely, 2^2005042055 is an apocalyptic number.

2005042055 is a deficient number, since it is larger than the sum of its proper divisors (478780825).

2005042055 is a wasteful number, since it uses less digits than its factorization.

2005042055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82690.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2005042055 is about 44777.6959545710. The cubic root of 2005042055 is about 1260.9789266184.

Adding to 2005042055 its reverse (5502405002), we get a palindrome (7507447057).

The spelling of 2005042055 in words is "two billion, five million, forty-two thousand, fifty-five".