51495389159 has 2 divisors, whose sum is σ = 51495389160. Its totient is φ = 51495389158.

The previous prime is 51495389089. The next prime is 51495389171. The reversal of 51495389159 is 95198359415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51495389159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51495389098 and 51495389107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51495389359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25747694579 + 25747694580.

It is an arithmetic number, because the mean of its divisors is an integer number (25747694580).

Almost surely, 2^51495389159 is an apocalyptic number.

51495389159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51495389159 is an equidigital number, since it uses as much as digits as its factorization.

51495389159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748000, while the sum is 59.

The spelling of 51495389159 in words is "fifty-one billion, four hundred ninety-five million, three hundred eighty-nine thousand, one hundred fifty-nine".