51504414305447 has 2 divisors, whose sum is σ = 51504414305448. Its totient is φ = 51504414305446.

The previous prime is 51504414305297. The next prime is 51504414305497. The reversal of 51504414305447 is 74450341440515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51504414305447 - 2²⁸ = 51504145869991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51504414305497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25752207152723 + 25752207152724.

It is an arithmetic number, because the mean of its divisors is an integer number (25752207152724).

Almost surely, 2^{51504414305447} is an apocalyptic number.

51504414305447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51504414305447 is an equidigital number, since it uses as much as digits as its factorization.

51504414305447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688000, while the sum is 47.

The spelling of 51504414305447 in words is "fifty-one trillion, five hundred four billion, four hundred fourteen million, three hundred five thousand, four hundred forty-seven".