51854522545801 has 2 divisors, whose sum is σ = 51854522545802. Its totient is φ = 51854522545800.

The previous prime is 51854522545757. The next prime is 51854522545849. The reversal of 51854522545801 is 10854522545815.

51854522545801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50891031102025 + 963491443776 = 7133795^2 + 981576^2 .

It is a cyclic number.

It is not a de Polignac number, because 51854522545801 - 2²⁷ = 51854388328073 is a prime.

It is not a weakly prime, because it can be changed into another prime (51854522545901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25927261272900 + 25927261272901.

It is an arithmetic number, because the mean of its divisors is an integer number (25927261272901).

Almost surely, 2^{51854522545801} is an apocalyptic number.

It is an amenable number.

51854522545801 is a deficient number, since it is larger than the sum of its proper divisors (1).

51854522545801 is an equidigital number, since it uses as much as digits as its factorization.

51854522545801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800000, while the sum is 55.

The spelling of 51854522545801 in words is "fifty-one trillion, eight hundred fifty-four billion, five hundred twenty-two million, five hundred forty-five thousand, eight hundred one".