2516415647 has 2 divisors, whose sum is σ = 2516415648. Its totient is φ = 2516415646.

The previous prime is 2516415617. The next prime is 2516415653. The reversal of 2516415647 is 7465146152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516415647 - 2³⁰ = 1442673823 is a prime.

It is a super-4 number, since 4×2516415647⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516415617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258207823 + 1258207824.

It is an arithmetic number, because the mean of its divisors is an integer number (1258207824).

Almost surely, 2^2516415647 is an apocalyptic number.

2516415647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516415647 is an equidigital number, since it uses as much as digits as its factorization.

2516415647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 41.

The square root of 2516415647 is about 50163.8878776356. The cubic root of 2516415647 is about 1360.1729247748.

The spelling of 2516415647 in words is "two billion, five hundred sixteen million, four hundred fifteen thousand, six hundred forty-seven".