51326510065547 has 2 divisors, whose sum is σ = 51326510065548. Its totient is φ = 51326510065546.

The previous prime is 51326510065529. The next prime is 51326510065553. The reversal of 51326510065547 is 74556001562315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51326510065547 - 2⁸ = 51326510065291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51326510065495 and 51326510065504.

It is not a weakly prime, because it can be changed into another prime (51326510065447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25663255032773 + 25663255032774.

It is an arithmetic number, because the mean of its divisors is an integer number (25663255032774).

Almost surely, 2^{51326510065547} is an apocalyptic number.

51326510065547 is a deficient number, since it is larger than the sum of its proper divisors (1).

51326510065547 is an equidigital number, since it uses as much as digits as its factorization.

51326510065547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 51326510065547 in words is "fifty-one trillion, three hundred twenty-six billion, five hundred ten million, sixty-five thousand, five hundred forty-seven".