2403540503 has 48 divisors (see below), whose sum is σ = 3250860480. Its totient is φ = 1755984384.

The previous prime is 2403540421. The next prime is 2403540509. The reversal of 2403540503 is 3050453042.

2403540503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2403540503 - 2²⁸ = 2135105047 is a prime.

It is a super-2 number, since 2×2403540503² = 11554013899122986018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403540509) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 422051 + ... + 427707.

It is an arithmetic number, because the mean of its divisors is an integer number (67726260).

Almost surely, 2^2403540503 is an apocalyptic number.

2403540503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2403540503 is a deficient number, since it is larger than the sum of its proper divisors (847319977).

2403540503 is a wasteful number, since it uses less digits than its factorization.

2403540503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 2403540503 is about 49025.9166461985. The cubic root of 2403540503 is about 1339.5239459541.

Adding to 2403540503 its reverse (3050453042), we get a palindrome (5453993545).

The spelling of 2403540503 in words is "two billion, four hundred three million, five hundred forty thousand, five hundred three".