2005051775 has 6 divisors (see below), whose sum is σ = 2486264232. Its totient is φ = 1604041400.

The previous prime is 2005051771. The next prime is 2005051777. The reversal of 2005051775 is 5771505002.

It is not a de Polignac number, because 2005051775 - 2² = 2005051771 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 (2005051771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 40101011 + ... + 40101060.

It is an arithmetic number, because the mean of its divisors is an integer number (414377372).

Almost surely, 2^2005051775 is an apocalyptic number.

2005051775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2005051775 is a deficient number, since it is larger than the sum of its proper divisors (481212457).

2005051775 is an equidigital number, since it uses as much as digits as its factorization.

2005051775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80202081 (or 80202076 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 2005051775 is about 44777.8044906179. The cubic root of 2005051775 is about 1260.9809642640.

Adding to 2005051775 its reverse (5771505002), we get a palindrome (7776556777).

The spelling of 2005051775 in words is "two billion, five million, fifty-one thousand, seven hundred seventy-five".