2500338305 has 4 divisors (see below), whose sum is σ = 3000405972. Its totient is φ = 2000270640.

The previous prime is 2500338271. The next prime is 2500338311. The reversal of 2500338305 is 5038330052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 626400784 + 1873937521 = 25028^2 + 43289^2 .

It is not a de Polignac number, because 2500338305 - 2⁶ = 2500338241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250033826 + ... + 250033835.

It is an arithmetic number, because the mean of its divisors is an integer number (750101493).

Almost surely, 2^2500338305 is an apocalyptic number.

It is an amenable number.

2500338305 is a deficient number, since it is larger than the sum of its proper divisors (500067667).

2500338305 is an equidigital number, since it uses as much as digits as its factorization.

2500338305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500067666.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 2500338305 is about 50003.3829355575. The cubic root of 2500338305 is about 1357.2700256063.

Adding to 2500338305 its reverse (5038330052), we get a palindrome (7538668357).

The spelling of 2500338305 in words is "two billion, five hundred million, three hundred thirty-eight thousand, three hundred five".