51502542415169 has 2 divisors, whose sum is σ = 51502542415170. Its totient is φ = 51502542415168.

The previous prime is 51502542415127. The next prime is 51502542415193. The reversal of 51502542415169 is 96151424520515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51449059840000 + 53482575169 = 7172800^2 + 231263^2 .

It is a cyclic number.

It is not a de Polignac number, because 51502542415169 - 2³² = 51498247447873 is a prime.

It is a super-3 number, since 3×51502542415169³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (51502542415199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25751271207584 + 25751271207585.

It is an arithmetic number, because the mean of its divisors is an integer number (25751271207585).

Almost surely, 2^{51502542415169} is an apocalyptic number.

It is an amenable number.

51502542415169 is a deficient number, since it is larger than the sum of its proper divisors (1).

51502542415169 is an equidigital number, since it uses as much as digits as its factorization.

51502542415169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 51502542415169 in words is "fifty-one trillion, five hundred two billion, five hundred forty-two million, four hundred fifteen thousand, one hundred sixty-nine".