2005531300 has 18 divisors (see below), whose sum is σ = 4352003138. Its totient is φ = 802212480.

The previous prime is 2005531291. The next prime is 2005531369. The reversal of 2005531300 is 31355002.

It can be written as a sum of positive squares in 3 ways, for example, as 313360804 + 1692170496 = 17702^2 + 41136^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10027557 + ... + 10027756.

Almost surely, 2^2005531300 is an apocalyptic number.

2005531300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005531300 is an abundant number, since it is smaller than the sum of its proper divisors (2346471838).

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

2005531300 is a wasteful number, since it uses less digits than its factorization.

2005531300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20055327 (or 20055320 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 2005531300 is about 44783.1586648374. The cubic root of 2005531300 is about 1261.0814809866.

Adding to 2005531300 its reverse (31355002), we get a palindrome (2036886302).

The spelling of 2005531300 in words is "two billion, five million, five hundred thirty-one thousand, three hundred".