2516902909 has 2 divisors, whose sum is σ = 2516902910. Its totient is φ = 2516902908.

The previous prime is 2516902907. The next prime is 2516902933. The reversal of 2516902909 is 9092096152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2357588025 + 159314884 = 48555^2 + 12622^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516902909 - 2¹ = 2516902907 is a prime.

Together with 2516902907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516902907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258451454 + 1258451455.

It is an arithmetic number, because the mean of its divisors is an integer number (1258451455).

Almost surely, 2^2516902909 is an apocalyptic number.

It is an amenable number.

2516902909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516902909 is an equidigital number, since it uses as much as digits as its factorization.

2516902909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 2516902909 is about 50168.7443434655. The cubic root of 2516902909 is about 1360.2607107238.

The spelling of 2516902909 in words is "two billion, five hundred sixteen million, nine hundred two thousand, nine hundred nine".