5711997251 has 2 divisors, whose sum is σ = 5711997252. Its totient is φ = 5711997250.

The previous prime is 5711997241. The next prime is 5711997253. The reversal of 5711997251 is 1527991175.

5711997251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5711997251 is a prime.

Together with 5711997253, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5711997196 and 5711997205.

It is not a weakly prime, because it can be changed into another prime (5711997253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2855998625 + 2855998626.

It is an arithmetic number, because the mean of its divisors is an integer number (2855998626).

Almost surely, 2^5711997251 is an apocalyptic number.

5711997251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5711997251 is an equidigital number, since it uses as much as digits as its factorization.

5711997251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198450, while the sum is 47.

The square root of 5711997251 is about 75577.7563241990. The cubic root of 5711997251 is about 1787.5683773605.

The spelling of 5711997251 in words is "five billion, seven hundred eleven million, nine hundred ninety-seven thousand, two hundred fifty-one".