51325336230545 has 8 divisors (see below), whose sum is σ = 66328126821096. Its totient is φ = 37901786754816.

The previous prime is 51325336230463. The next prime is 51325336230569. The reversal of 51325336230545 is 54503263352315.

It can be written as a sum of positive squares in 4 ways, for example, as 1218248610049 + 50107087620496 = 1103743^2 + 7078636^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51325336230545 - 2¹⁰ = 51325336229521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51325336230545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394810278632 + ... + 394810278761.

It is an arithmetic number, because the mean of its divisors is an integer number (8291015852637).

Almost surely, 2^{51325336230545} is an apocalyptic number.

It is an amenable number.

51325336230545 is a deficient number, since it is larger than the sum of its proper divisors (15002790590551).

51325336230545 is a wasteful number, since it uses less digits than its factorization.

51325336230545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789620557411.

The product of its (nonzero) digits is 4860000, while the sum is 47.

The spelling of 51325336230545 in words is "fifty-one trillion, three hundred twenty-five billion, three hundred thirty-six million, two hundred thirty thousand, five hundred forty-five".