51447162314257 has 2 divisors, whose sum is σ = 51447162314258. Its totient is φ = 51447162314256.

The previous prime is 51447162314213. The next prime is 51447162314267. The reversal of 51447162314257 is 75241326174415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50644344522256 + 802817792001 = 7116484^2 + 896001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51447162314257 is a prime.

It is not a weakly prime, because it can be changed into another prime (51447162314267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25723581157128 + 25723581157129.

It is an arithmetic number, because the mean of its divisors is an integer number (25723581157129).

Almost surely, 2^{51447162314257} is an apocalyptic number.

It is an amenable number.

51447162314257 is a deficient number, since it is larger than the sum of its proper divisors (1).

51447162314257 is an equidigital number, since it uses as much as digits as its factorization.

51447162314257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5644800, while the sum is 52.

The spelling of 51447162314257 in words is "fifty-one trillion, four hundred forty-seven billion, one hundred sixty-two million, three hundred fourteen thousand, two hundred fifty-seven".