2505003 has 4 divisors (see below), whose sum is σ = 3340008. Its totient is φ = 1670000.

The previous prime is 2504987. The next prime is 2505007. The reversal of 2505003 is 3005052.

2505003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2505003 - 2⁴ = 2504987 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2505007) 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, 417498 + ... + 417503.

It is an arithmetic number, because the mean of its divisors is an integer number (835002).

2^2505003 is an apocalyptic number.

2505003 is a deficient number, since it is larger than the sum of its proper divisors (835005).

2505003 is an equidigital number, since it uses as much as digits as its factorization.

2505003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835004.

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

The square root of 2505003 is about 1582.7201268702. The cubic root of 2505003 is about 135.8113553796.

It can be divided in two parts, 250 and 5003, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 2505003 in words is "two million, five hundred five thousand, three".