2503563 has 8 divisors (see below), whose sum is σ = 3345408. Its totient is φ = 1665384.

The previous prime is 2503559. The next prime is 2503577. The reversal of 2503563 is 3653052.

2503563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2503563 - 2² = 2503559 is a prime.

2503563 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2503513) 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 7 ways as a sum of consecutive naturals, for example, 2106 + ... + 3072.

It is an arithmetic number, because the mean of its divisors is an integer number (418176).

2^2503563 is an apocalyptic number.

2503563 is a deficient number, since it is larger than the sum of its proper divisors (841845).

2503563 is an equidigital number, since it uses as much as digits as its factorization.

2503563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 2503563 is about 1582.2651484502. The cubic root of 2503563 is about 135.7853266898.

The spelling of 2503563 in words is "two million, five hundred three thousand, five hundred sixty-three".