20050003 has 2 divisors, whose sum is σ = 20050004. Its totient is φ = 20050002.

The previous prime is 20049989. The next prime is 20050013. The reversal of 20050003 is 30005002.

It is an a-pointer prime, because the next prime (20050013) can be obtained adding 20050003 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20050003 - 2⁵ = 20049971 is a prime.

It is not a weakly prime, because it can be changed into another prime (20050013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025001 + 10025002.

It is an arithmetic number, because the mean of its divisors is an integer number (10025002).

Almost surely, 2^20050003 is an apocalyptic number.

20050003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20050003 is an equidigital number, since it uses as much as digits as its factorization.

20050003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 20050003 is about 4477.7229704393. The cubic root of 20050003 is about 271.6677884372.

Adding to 20050003 its reverse (30005002), we get a palindrome (50055005).

It can be divided in two parts, 2005000 and 3, that added together give a triangular number (2005003 = T₂₀₀₂).

The spelling of 20050003 in words is "twenty million, fifty thousand, three".