51103606612547 has 2 divisors, whose sum is σ = 51103606612548. Its totient is φ = 51103606612546.

The previous prime is 51103606612529. The next prime is 51103606612573. The reversal of 51103606612547 is 74521660630115.

It is a happy number.

51103606612547 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 is a cyclic number.

It is not a de Polignac number, because 51103606612547 - 2¹⁰ = 51103606611523 is a prime.

It is a super-2 number, since 2×51103606612547² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51103606602547) 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, 25551803306273 + 25551803306274.

It is an arithmetic number, because the mean of its divisors is an integer number (25551803306274).

Almost surely, 2^{51103606612547} is an apocalyptic number.

51103606612547 is a deficient number, since it is larger than the sum of its proper divisors (1).

51103606612547 is an equidigital number, since it uses as much as digits as its factorization.

51103606612547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 51103606612547 in words is "fifty-one trillion, one hundred three billion, six hundred six million, six hundred twelve thousand, five hundred forty-seven".