51017415370325 has 6 divisors (see below), whose sum is σ = 63261595059234. Its totient is φ = 40813932296240.

The previous prime is 51017415370321. The next prime is 51017415370409. The reversal of 51017415370325 is 52307351471015.

It can be written as a sum of positive squares in 3 ways, for example, as 260012287396 + 50757403082929 = 509914^2 + 7124423^2 .

It is not a de Polignac number, because 51017415370325 - 2² = 51017415370321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51017415370321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1020348307382 + ... + 1020348307431.

It is an arithmetic number, because the mean of its divisors is an integer number (10543599176539).

Almost surely, 2^{51017415370325} is an apocalyptic number.

It is an amenable number.

51017415370325 is a deficient number, since it is larger than the sum of its proper divisors (12244179688909).

51017415370325 is a wasteful number, since it uses less digits than its factorization.

51017415370325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040696614823 (or 2040696614818 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 51017415370325 in words is "fifty-one trillion, seventeen billion, four hundred fifteen million, three hundred seventy thousand, three hundred twenty-five".