20252003 has 4 divisors (see below), whose sum is σ = 20274960. Its totient is φ = 20229048.

The previous prime is 20251993. The next prime is 20252017. The reversal of 20252003 is 30025202.

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 20252003 - 2¹² = 20247907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20252033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10100 + ... + 11937.

It is an arithmetic number, because the mean of its divisors is an integer number (5068740).

Almost surely, 2^20252003 is an apocalyptic number.

20252003 is a deficient number, since it is larger than the sum of its proper divisors (22957).

20252003 is an equidigital number, since it uses as much as digits as its factorization.

20252003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20252003 is about 4500.2225500524. Note that the first 3 decimals coincide. The cubic root of 20252003 is about 272.5770755237.

Adding to 20252003 its reverse (30025202), we get a palindrome (50277205).

The spelling of 20252003 in words is "twenty million, two hundred fifty-two thousand, three".