5316501722251 has 2 divisors, whose sum is σ = 5316501722252. Its totient is φ = 5316501722250.

The previous prime is 5316501722219. The next prime is 5316501722281. The reversal of 5316501722251 is 1522271056135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5316501722251 - 2⁵ = 5316501722219 is a prime.

It is not a weakly prime, because it can be changed into another prime (5316501722281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2658250861125 + 2658250861126.

It is an arithmetic number, because the mean of its divisors is an integer number (2658250861126).

Almost surely, 2^{5316501722251} is an apocalyptic number.

5316501722251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5316501722251 is an equidigital number, since it uses as much as digits as its factorization.

5316501722251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 40.

Adding to 5316501722251 its reverse (1522271056135), we get a palindrome (6838772778386).

The spelling of 5316501722251 in words is "five trillion, three hundred sixteen billion, five hundred one million, seven hundred twenty-two thousand, two hundred fifty-one".