55517172682073 has 2 divisors, whose sum is σ = 55517172682074. Its totient is φ = 55517172682072.

The previous prime is 55517172682001. The next prime is 55517172682093. The reversal of 55517172682073 is 37028627171555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49920484786249 + 5596687895824 = 7065443^2 + 2365732^2 .

It is a cyclic number.

It is not a de Polignac number, because 55517172682073 - 2²² = 55517168487769 is a prime.

It is a super-3 number, since 3×55517172682073³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (55517172682093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27758586341036 + 27758586341037.

It is an arithmetic number, because the mean of its divisors is an integer number (27758586341037).

Almost surely, 2^{55517172682073} is an apocalyptic number.

It is an amenable number.

55517172682073 is a deficient number, since it is larger than the sum of its proper divisors (1).

55517172682073 is an equidigital number, since it uses as much as digits as its factorization.

55517172682073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696000, while the sum is 59.

The spelling of 55517172682073 in words is "fifty-five trillion, five hundred seventeen billion, one hundred seventy-two million, six hundred eighty-two thousand, seventy-three".