2505503 has 16 divisors (see below), whose sum is σ = 3365376. Its totient is φ = 1801440.

The previous prime is 2505499. The next prime is 2505527. The reversal of 2505503 is 3055052.

It is a cyclic number.

It is not a de Polignac number, because 2505503 - 2² = 2505499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251 + ... + 2252.

It is an arithmetic number, because the mean of its divisors is an integer number (210336).

2^2505503 is an apocalyptic number.

2505503 is a deficient number, since it is larger than the sum of its proper divisors (859873).

2505503 is a wasteful number, since it uses less digits than its factorization.

2505503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 2505503 is about 1582.8780749003. The cubic root of 2505503 is about 135.8203907859.

It can be divided in two parts, 2 and 505503, that added together give a palindrome (505505).

The spelling of 2505503 in words is "two million, five hundred five thousand, five hundred three".