2500309913 has 2 divisors, whose sum is σ = 2500309914. Its totient is φ = 2500309912.

The previous prime is 2500309897. The next prime is 2500309919. The reversal of 2500309913 is 3199030052.

2500309913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2483228224 + 17081689 = 49832^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500309913 - 2⁴ = 2500309897 is a prime.

It is a super-2 number, since 2×2500309913² = 12503099322092135138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2500309913.

It is not a weakly prime, because it can be changed into another prime (2500309919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250154956 + 1250154957.

It is an arithmetic number, because the mean of its divisors is an integer number (1250154957).

Almost surely, 2^2500309913 is an apocalyptic number.

It is an amenable number.

2500309913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500309913 is an equidigital number, since it uses as much as digits as its factorization.

2500309913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 2500309913 is about 50003.0990339599. The cubic root of 2500309913 is about 1357.2648882007.

Adding to 2500309913 its reverse (3199030052), we get a palindrome (5699339965).

The spelling of 2500309913 in words is "two billion, five hundred million, three hundred nine thousand, nine hundred thirteen".