51171548159 has 2 divisors, whose sum is σ = 51171548160. Its totient is φ = 51171548158.

The previous prime is 51171548123. The next prime is 51171548161. The reversal of 51171548159 is 95184517115.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51171548159 is a prime.

Together with 51171548161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51171548119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25585774079 + 25585774080.

It is an arithmetic number, because the mean of its divisors is an integer number (25585774080).

Almost surely, 2^51171548159 is an apocalyptic number.

51171548159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51171548159 is an equidigital number, since it uses as much as digits as its factorization.

51171548159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 47.

The spelling of 51171548159 in words is "fifty-one billion, one hundred seventy-one million, five hundred forty-eight thousand, one hundred fifty-nine".