2503243 has 8 divisors (see below), whose sum is σ = 2589408. Its totient is φ = 2418624.

The previous prime is 2503217. The next prime is 2503253. The reversal of 2503243 is 3423052.

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

It is a cyclic number.

It is not a de Polignac number, because 2503243 - 2⁵ = 2503211 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 5⁷ + 0 + 3⁹ + 2²¹ + 4³ + 3¹¹ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2503243.

It is not an unprimeable number, because it can be changed into a prime (2503213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546 + ... + 4192.

It is an arithmetic number, because the mean of its divisors is an integer number (323676).

2^2503243 is an apocalyptic number.

2503243 is a deficient number, since it is larger than the sum of its proper divisors (86165).

2503243 is an equidigital number, since it uses as much as digits as its factorization.

2503243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 2503243 is about 1582.1640243666. The cubic root of 2503243 is about 135.7795411812.

Adding to 2503243 its reverse (3423052), we get a palindrome (5926295).

The spelling of 2503243 in words is "two million, five hundred three thousand, two hundred forty-three".