2005444853 has 2 divisors, whose sum is σ = 2005444854. Its totient is φ = 2005444852.

The previous prime is 2005444817. The next prime is 2005444877. The reversal of 2005444853 is 3584445002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2004979729 + 465124 = 44777^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005444853 - 2¹⁸ = 2005182709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005444153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002722426 + 1002722427.

It is an arithmetic number, because the mean of its divisors is an integer number (1002722427).

Almost surely, 2^2005444853 is an apocalyptic number.

It is an amenable number.

2005444853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005444853 is an equidigital number, since it uses as much as digits as its factorization.

2005444853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 2005444853 is about 44782.1934813381. The cubic root of 2005444853 is about 1261.0633613862.

Adding to 2005444853 its reverse (3584445002), we get a palindrome (5589889855).

The spelling of 2005444853 in words is "two billion, five million, four hundred forty-four thousand, eight hundred fifty-three".