51573536428039 has 2 divisors, whose sum is σ = 51573536428040. Its totient is φ = 51573536428038.

The previous prime is 51573536428021. The next prime is 51573536428049. The reversal of 51573536428039 is 93082463537515.

51573536428039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51573536428039 - 2²¹ = 51573534330887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51573536428049) 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, 25786768214019 + 25786768214020.

It is an arithmetic number, because the mean of its divisors is an integer number (25786768214020).

It is a 1-persistent number, because it is pandigital, but 2⋅51573536428039 = 103147072856078 is not.

Almost surely, 2^{51573536428039} is an apocalyptic number.

51573536428039 is a deficient number, since it is larger than the sum of its proper divisors (1).

51573536428039 is an equidigital number, since it uses as much as digits as its factorization.

51573536428039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648000, while the sum is 61.

The spelling of 51573536428039 in words is "fifty-one trillion, five hundred seventy-three billion, five hundred thirty-six million, four hundred twenty-eight thousand, thirty-nine".