20055003 has 4 divisors (see below), whose sum is σ = 26740008. Its totient is φ = 13370000.

The previous prime is 20055001. The next prime is 20055017. The reversal of 20055003 is 30055002.

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 20055003 - 2¹ = 20055001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20055001) 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, 3342498 + ... + 3342503.

It is an arithmetic number, because the mean of its divisors is an integer number (6685002).

Almost surely, 2^20055003 is an apocalyptic number.

20055003 is a deficient number, since it is larger than the sum of its proper divisors (6685005).

20055003 is an equidigital number, since it uses as much as digits as its factorization.

20055003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6685004.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 20055003 is about 4478.2812551246. The cubic root of 20055003 is about 271.6903690830.

Subtracting 20055003 from its reverse (30055002), we obtain a palindrome (9999999).

The spelling of 20055003 in words is "twenty million, fifty-five thousand, three".