2005220403 has 6 divisors (see below), whose sum is σ = 2896429484. Its totient is φ = 1336813596.

The previous prime is 2005220387. The next prime is 2005220443. The reversal of 2005220403 is 3040225002.

It is not a de Polignac number, because 2005220403 - 2⁴ = 2005220387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005220443) 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 5 ways as a sum of consecutive naturals, for example, 111401125 + ... + 111401142.

Almost surely, 2^2005220403 is an apocalyptic number.

2005220403 is a deficient number, since it is larger than the sum of its proper divisors (891209081).

2005220403 is a wasteful number, since it uses less digits than its factorization.

2005220403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222802273 (or 222802270 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2005220403 is about 44779.6873928347. The cubic root of 2005220403 is about 1261.0163134322.

Adding to 2005220403 its reverse (3040225002), we get a palindrome (5045445405).

The spelling of 2005220403 in words is "two billion, five million, two hundred twenty thousand, four hundred three".