51231354535307 has 2 divisors, whose sum is σ = 51231354535308. Its totient is φ = 51231354535306.

The previous prime is 51231354535297. The next prime is 51231354535357. The reversal of 51231354535307 is 70353545313215.

51231354535307 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 a de Polignac number, because none of the positive numbers 2^k-51231354535307 is a prime.

It is a super-2 number, since 2×51231354535307² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51231354535357) 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, 25615677267653 + 25615677267654.

It is an arithmetic number, because the mean of its divisors is an integer number (25615677267654).

Almost surely, 2^{51231354535307} is an apocalyptic number.

51231354535307 is a deficient number, since it is larger than the sum of its proper divisors (1).

51231354535307 is an equidigital number, since it uses as much as digits as its factorization.

51231354535307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 47.

The spelling of 51231354535307 in words is "fifty-one trillion, two hundred thirty-one billion, three hundred fifty-four million, five hundred thirty-five thousand, three hundred seven".