55172193536573 has 2 divisors, whose sum is σ = 55172193536574. Its totient is φ = 55172193536572.

The previous prime is 55172193536479. The next prime is 55172193536617. The reversal of 55172193536573 is 37563539127155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51492076936804 + 3680116599769 = 7175798^2 + 1918363^2 .

It is a cyclic number.

It is not a de Polignac number, because 55172193536573 - 2¹⁰ = 55172193535549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55172193536773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27586096768286 + 27586096768287.

It is an arithmetic number, because the mean of its divisors is an integer number (27586096768287).

Almost surely, 2^{55172193536573} is an apocalyptic number.

It is an amenable number.

55172193536573 is a deficient number, since it is larger than the sum of its proper divisors (1).

55172193536573 is an equidigital number, since it uses as much as digits as its factorization.

55172193536573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89302500, while the sum is 62.

The spelling of 55172193536573 in words is "fifty-five trillion, one hundred seventy-two billion, one hundred ninety-three million, five hundred thirty-six thousand, five hundred seventy-three".