2005425318 has 24 divisors (see below), whose sum is σ = 4343112648. Its totient is φ = 617053632.

The previous prime is 2005425311. The next prime is 2005425379. The reversal of 2005425318 is 8135245002.

It is a super-2 number, since 2×2005425318² = 8043461412150802248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005425311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 987855 + ... + 989882.

It is an arithmetic number, because the mean of its divisors is an integer number (180963027).

Almost surely, 2^2005425318 is an apocalyptic number.

2005425318 is an abundant number, since it is smaller than the sum of its proper divisors (2337687330).

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

2005425318 is a wasteful number, since it uses less digits than its factorization.

2005425318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977768 (or 1977755 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2005425318 is about 44781.9753695614. The cubic root of 2005425318 is about 1261.0592667082.

The spelling of 2005425318 in words is "two billion, five million, four hundred twenty-five thousand, three hundred eighteen".