2516065609 has 2 divisors, whose sum is σ = 2516065610. Its totient is φ = 2516065608.

The previous prime is 2516065583. The next prime is 2516065631. The reversal of 2516065609 is 9065606152.

2516065609 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., 1589776384 + 926289225 = 39872^2 + 30435^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516065609 - 2¹⁹ = 2515541321 is a prime.

It is a super-2 number, since 2×2516065609² = 12661172297585081762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2516065649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258032804 + 1258032805.

It is an arithmetic number, because the mean of its divisors is an integer number (1258032805).

Almost surely, 2^2516065609 is an apocalyptic number.

It is an amenable number.

2516065609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516065609 is an equidigital number, since it uses as much as digits as its factorization.

2516065609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 2516065609 is about 50160.3988122104. The cubic root of 2516065609 is about 1360.1098543399.

The spelling of 2516065609 in words is "two billion, five hundred sixteen million, sixty-five thousand, six hundred nine".