2005605258 has 32 divisors (see below), whose sum is σ = 4152297600. Its totient is φ = 645051456.

The previous prime is 2005605257. The next prime is 2005605293. The reversal of 2005605258 is 8525065002.

It is not an unprimeable number, because it can be changed into a prime (2005605253) 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, 351960 + ... + 357612.

It is an arithmetic number, because the mean of its divisors is an integer number (129759300).

Almost surely, 2^2005605258 is an apocalyptic number.

2005605258 is an abundant number, since it is smaller than the sum of its proper divisors (2146692342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005605258 is a wasteful number, since it uses less digits than its factorization.

2005605258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 2005605258 is about 44783.9843917443. The cubic root of 2005605258 is about 1261.0969824346.

The spelling of 2005605258 in words is "two billion, five million, six hundred five thousand, two hundred fifty-eight".