2005243063 has 4 divisors (see below), whose sum is σ = 2092427568. Its totient is φ = 1918058560.

The previous prime is 2005243049. The next prime is 2005243081. The reversal of 2005243063 is 3603425002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2005243063 - 2¹³ = 2005234871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005243003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43592218 + ... + 43592263.

It is an arithmetic number, because the mean of its divisors is an integer number (523106892).

Almost surely, 2^2005243063 is an apocalyptic number.

2005243063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2005243063 is a deficient number, since it is larger than the sum of its proper divisors (87184505).

2005243063 is an equidigital number, since it uses as much as digits as its factorization.

2005243063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87184504.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2005243063 is about 44779.9404086249. The cubic root of 2005243063 is about 1261.0210634540.

Adding to 2005243063 its reverse (3603425002), we get a palindrome (5608668065).

The spelling of 2005243063 in words is "two billion, five million, two hundred forty-three thousand, sixty-three".