51760521889 has 2 divisors, whose sum is σ = 51760521890. Its totient is φ = 51760521888.

The previous prime is 51760521887. The next prime is 51760521929. The reversal of 51760521889 is 98812506715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44245019025 + 7515502864 = 210345^2 + 86692^2 .

It is a cyclic number.

It is not a de Polignac number, because 51760521889 - 2¹ = 51760521887 is a prime.

Together with 51760521887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51760521887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25880260944 + 25880260945.

It is an arithmetic number, because the mean of its divisors is an integer number (25880260945).

Almost surely, 2^51760521889 is an apocalyptic number.

It is an amenable number.

51760521889 is a deficient number, since it is larger than the sum of its proper divisors (1).

51760521889 is an equidigital number, since it uses as much as digits as its factorization.

51760521889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 52.

The spelling of 51760521889 in words is "fifty-one billion, seven hundred sixty million, five hundred twenty-one thousand, eight hundred eighty-nine".