51255285050029 has 2 divisors, whose sum is σ = 51255285050030. Its totient is φ = 51255285050028.

The previous prime is 51255285049961. The next prime is 51255285050069. The reversal of 51255285050029 is 92005058255215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35289266987529 + 15966018062500 = 5940477^2 + 3995750^2 .

It is a cyclic number.

It is not a de Polignac number, because 51255285050029 - 2³¹ = 51253137566381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51255285050069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25627642525014 + 25627642525015.

It is an arithmetic number, because the mean of its divisors is an integer number (25627642525015).

Almost surely, 2^{51255285050029} is an apocalyptic number.

It is an amenable number.

51255285050029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51255285050029 is an equidigital number, since it uses as much as digits as its factorization.

51255285050029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800000, while the sum is 49.

The spelling of 51255285050029 in words is "fifty-one trillion, two hundred fifty-five billion, two hundred eighty-five million, fifty thousand, twenty-nine".