2521116547 has 2 divisors, whose sum is σ = 2521116548. Its totient is φ = 2521116546.

The previous prime is 2521116487. The next prime is 2521116557. The reversal of 2521116547 is 7456111252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2521116547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2521116557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260558273 + 1260558274.

It is an arithmetic number, because the mean of its divisors is an integer number (1260558274).

Almost surely, 2^2521116547 is an apocalyptic number.

2521116547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521116547 is an equidigital number, since it uses as much as digits as its factorization.

2521116547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

The square root of 2521116547 is about 50210.7214347693. The cubic root of 2521116547 is about 1361.0193746957.

Adding to 2521116547 its reverse (7456111252), we get a palindrome (9977227799).

The spelling of 2521116547 in words is "two billion, five hundred twenty-one million, one hundred sixteen thousand, five hundred forty-seven".