2513043503 has 4 divisors (see below), whose sum is σ = 2622306288. Its totient is φ = 2403780720.

The previous prime is 2513043487. The next prime is 2513043521. The reversal of 2513043503 is 3053403152.

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

It is a cyclic number.

It is not a de Polignac number, because 2513043503 - 2⁴ = 2513043487 is a prime.

It is a super-2 number, since 2×2513043503² = 12630775295941022018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513043523) 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 3 ways as a sum of consecutive naturals, for example, 54631358 + ... + 54631403.

It is an arithmetic number, because the mean of its divisors is an integer number (655576572).

Almost surely, 2^2513043503 is an apocalyptic number.

2513043503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2513043503 is a deficient number, since it is larger than the sum of its proper divisors (109262785).

2513043503 is a wasteful number, since it uses less digits than its factorization.

2513043503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109262784.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2513043503 is about 50130.2653394135. The cubic root of 2513043503 is about 1359.5650827815.

Adding to 2513043503 its reverse (3053403152), we get a palindrome (5566446655).

The spelling of 2513043503 in words is "two billion, five hundred thirteen million, forty-three thousand, five hundred three".