55590173 has 2 divisors, whose sum is σ = 55590174. Its totient is φ = 55590172.

The previous prime is 55590133. The next prime is 55590203. The reversal of 55590173 is 37109555.

55590173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42471289 + 13118884 = 6517^2 + 3622^2 .

It is a cyclic number.

It is not a de Polignac number, because 55590173 - 2¹⁴ = 55573789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55590133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27795086 + 27795087.

It is an arithmetic number, because the mean of its divisors is an integer number (27795087).

Almost surely, 2^55590173 is an apocalyptic number.

It is an amenable number.

55590173 is a deficient number, since it is larger than the sum of its proper divisors (1).

55590173 is an equidigital number, since it uses as much as digits as its factorization.

55590173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 55590173 is about 7455.8817721313. The cubic root of 55590173 is about 381.6506518921.

The spelling of 55590173 in words is "fifty-five million, five hundred ninety thousand, one hundred seventy-three".