2521310717 has 2 divisors, whose sum is σ = 2521310718. Its totient is φ = 2521310716.

The previous prime is 2521310711. The next prime is 2521310741. The reversal of 2521310717 is 7170131252.

2521310717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1496606596 + 1024704121 = 38686^2 + 32011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2521310717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2521310717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521310711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260655358 + 1260655359.

It is an arithmetic number, because the mean of its divisors is an integer number (1260655359).

Almost surely, 2^2521310717 is an apocalyptic number.

It is an amenable number.

2521310717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521310717 is an equidigital number, since it uses as much as digits as its factorization.

2521310717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 2521310717 is about 50212.6549487278. The cubic root of 2521310717 is about 1361.0543145518.

Adding to 2521310717 its reverse (7170131252), we get a palindrome (9691441969).

The spelling of 2521310717 in words is "two billion, five hundred twenty-one million, three hundred ten thousand, seven hundred seventeen".