2642503 has 4 divisors (see below), whose sum is σ = 2713960. Its totient is φ = 2571048.

The previous prime is 2642483. The next prime is 2642513. The reversal of 2642503 is 3052462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642503 is a prime.

It is a Duffinian number.

2642503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642513) 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, 35673 + ... + 35746.

It is an arithmetic number, because the mean of its divisors is an integer number (678490).

2^2642503 is an apocalyptic number.

2642503 is a deficient number, since it is larger than the sum of its proper divisors (71457).

2642503 is an equidigital number, since it uses as much as digits as its factorization.

2642503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71456.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2642503 is about 1625.5777434500. The cubic root of 2642503 is about 138.2521295644.

Adding to 2642503 its reverse (3052462), we get a palindrome (5694965).

The spelling of 2642503 in words is "two million, six hundred forty-two thousand, five hundred three".