2005541512 has 32 divisors (see below), whose sum is σ = 4135824000. Its totient is φ = 905937984.

The previous prime is 2005541501. The next prime is 2005541513. The reversal of 2005541512 is 2151455002.

It is a super-2 number, since 2×2005541512² = 8044393512710492288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2005541513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200262 + ... + 210037.

It is an arithmetic number, because the mean of its divisors is an integer number (129244500).

Almost surely, 2^2005541512 is an apocalyptic number.

It is an amenable number.

2005541512 is an abundant number, since it is smaller than the sum of its proper divisors (2130282488).

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

2005541512 is a wasteful number, since it uses less digits than its factorization.

2005541512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410365 (or 410361 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2005541512 is about 44783.2726807678. The cubic root of 2005541512 is about 1261.0836214239.

Adding to 2005541512 its reverse (2151455002), we get a palindrome (4156996514).

The spelling of 2005541512 in words is "two billion, five million, five hundred forty-one thousand, five hundred twelve".