2005531012 has 12 divisors (see below), whose sum is σ = 3512886300. Its totient is φ = 1001849216.

The previous prime is 2005530991. The next prime is 2005531013. The reversal of 2005531012 is 2101355002.

It can be written as a sum of positive squares in 2 ways, for example, as 864712836 + 1140818176 = 29406^2 + 33776^2 .

It is not an unprimeable number, because it can be changed into a prime (2005531013) 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 3 ways as a sum of consecutive naturals, for example, 224137 + ... + 232912.

It is an arithmetic number, because the mean of its divisors is an integer number (292740525).

Almost surely, 2^2005531012 is an apocalyptic number.

It is an amenable number.

2005531012 is a deficient number, since it is larger than the sum of its proper divisors (1507355288).

2005531012 is a wasteful number, since it uses less digits than its factorization.

2005531012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458150 (or 458148 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 2005531012 is about 44783.1554493428. The cubic root of 2005531012 is about 1261.0814206216.

Adding to 2005531012 its reverse (2101355002), we get a palindrome (4106886014).

The spelling of 2005531012 in words is "two billion, five million, five hundred thirty-one thousand, twelve".