5511718241 has 2 divisors, whose sum is σ = 5511718242. Its totient is φ = 5511718240.

The previous prime is 5511718237. The next prime is 5511718243. The reversal of 5511718241 is 1428171155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4679107216 + 832611025 = 68404^2 + 28855^2 .

It is a cyclic number.

It is not a de Polignac number, because 5511718241 - 2² = 5511718237 is a prime.

It is a Sophie Germain prime.

Together with 5511718243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5511718243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755859120 + 2755859121.

It is an arithmetic number, because the mean of its divisors is an integer number (2755859121).

Almost surely, 2^5511718241 is an apocalyptic number.

It is an amenable number.

5511718241 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511718241 is an equidigital number, since it uses as much as digits as its factorization.

5511718241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 35.

The square root of 5511718241 is about 74240.9471989683. The cubic root of 5511718241 is about 1766.4268987807.

Adding to 5511718241 its reverse (1428171155), we get a palindrome (6939889396).

The spelling of 5511718241 in words is "five billion, five hundred eleven million, seven hundred eighteen thousand, two hundred forty-one".