2516980709 has 2 divisors, whose sum is σ = 2516980710. Its totient is φ = 2516980708.

The previous prime is 2516980699. The next prime is 2516980723. The reversal of 2516980709 is 9070896152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1406625025 + 1110355684 = 37505^2 + 33322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2516980709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516980009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258490354 + 1258490355.

It is an arithmetic number, because the mean of its divisors is an integer number (1258490355).

Almost surely, 2^2516980709 is an apocalyptic number.

It is an amenable number.

2516980709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516980709 is an equidigital number, since it uses as much as digits as its factorization.

2516980709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 2516980709 is about 50169.5197206431. The cubic root of 2516980709 is about 1360.2747262549.

The spelling of 2516980709 in words is "two billion, five hundred sixteen million, nine hundred eighty thousand, seven hundred nine".