51326055654469 has 2 divisors, whose sum is σ = 51326055654470. Its totient is φ = 51326055654468.

The previous prime is 51326055654457. The next prime is 51326055654487. The reversal of 51326055654469 is 96445655062315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35278099774369 + 16047955880100 = 5939537^2 + 4005990^2 .

It is a cyclic number.

It is not a de Polignac number, because 51326055654469 - 2⁵ = 51326055654437 is a prime.

It is a super-2 number, since 2×51326055654469² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51326055654439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25663027827234 + 25663027827235.

It is an arithmetic number, because the mean of its divisors is an integer number (25663027827235).

Almost surely, 2^{51326055654469} is an apocalyptic number.

It is an amenable number.

51326055654469 is a deficient number, since it is larger than the sum of its proper divisors (1).

51326055654469 is an equidigital number, since it uses as much as digits as its factorization.

51326055654469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640000, while the sum is 61.

The spelling of 51326055654469 in words is "fifty-one trillion, three hundred twenty-six billion, fifty-five million, six hundred fifty-four thousand, four hundred sixty-nine".