2501320503 has 8 divisors (see below), whose sum is σ = 3638284416. Its totient is φ = 1515951800.

The previous prime is 2501320501. The next prime is 2501320537. The reversal of 2501320503 is 3050231052.

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

It is not a de Polignac number, because 2501320503 - 2¹ = 2501320501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2501320503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501320501) 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, 37898763 + ... + 37898828.

It is an arithmetic number, because the mean of its divisors is an integer number (454785552).

Almost surely, 2^2501320503 is an apocalyptic number.

2501320503 is a deficient number, since it is larger than the sum of its proper divisors (1136963913).

2501320503 is a wasteful number, since it uses less digits than its factorization.

2501320503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75797605.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2501320503 is about 50013.2032867322. The cubic root of 2501320503 is about 1357.4477260106.

Adding to 2501320503 its reverse (3050231052), we get a palindrome (5551551555).

The spelling of 2501320503 in words is "two billion, five hundred one million, three hundred twenty thousand, five hundred three".