2005260451 has 16 divisors (see below), whose sum is σ = 2167216128. Its totient is φ = 1849953600.

The previous prime is 2005260421. The next prime is 2005260529. The reversal of 2005260451 is 1540625002.

It is a cyclic number.

It is not a de Polignac number, because 2005260451 - 2²³ = 1996871843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005260421) 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 in 15 ways as a sum of consecutive naturals, for example, 214311 + ... + 223471.

It is an arithmetic number, because the mean of its divisors is an integer number (135451008).

Almost surely, 2^2005260451 is an apocalyptic number.

2005260451 is a deficient number, since it is larger than the sum of its proper divisors (161955677).

2005260451 is a wasteful number, since it uses less digits than its factorization.

2005260451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9522.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2005260451 is about 44780.1345576362. The cubic root of 2005260451 is about 1261.0247083273.

Adding to 2005260451 its reverse (1540625002), we get a palindrome (3545885453).

The spelling of 2005260451 in words is "two billion, five million, two hundred sixty thousand, four hundred fifty-one".