2516312551 has 2 divisors, whose sum is σ = 2516312552. Its totient is φ = 2516312550.

The previous prime is 2516312543. The next prime is 2516312581. The reversal of 2516312551 is 1552136152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2516312551 - 2³ = 2516312543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516312521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258156275 + 1258156276.

It is an arithmetic number, because the mean of its divisors is an integer number (1258156276).

Almost surely, 2^2516312551 is an apocalyptic number.

2516312551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516312551 is an equidigital number, since it uses as much as digits as its factorization.

2516312551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 31.

The square root of 2516312551 is about 50162.8602753073. The cubic root of 2516312551 is about 1360.1543493720.

The spelling of 2516312551 in words is "two billion, five hundred sixteen million, three hundred twelve thousand, five hundred fifty-one".