51351531337297 has 2 divisors, whose sum is σ = 51351531337298. Its totient is φ = 51351531337296.

The previous prime is 51351531337291. The next prime is 51351531337391. The reversal of 51351531337297 is 79273313515315.

51351531337297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34703833872016 + 16647697465281 = 5890996^2 + 4080159^2 .

It is a cyclic number.

It is not a de Polignac number, because 51351531337297 - 2³ = 51351531337289 is a prime.

It is not a weakly prime, because it can be changed into another prime (51351531337291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675765668648 + 25675765668649.

It is an arithmetic number, because the mean of its divisors is an integer number (25675765668649).

Almost surely, 2^{51351531337297} is an apocalyptic number.

It is an amenable number.

51351531337297 is a deficient number, since it is larger than the sum of its proper divisors (1).

51351531337297 is an equidigital number, since it uses as much as digits as its factorization.

51351531337297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8930250, while the sum is 55.

The spelling of 51351531337297 in words is "fifty-one trillion, three hundred fifty-one billion, five hundred thirty-one million, three hundred thirty-seven thousand, two hundred ninety-seven".