55193173 has 4 divisors (see below), whose sum is σ = 63077920. Its totient is φ = 47308428.

The previous prime is 55193141. The next prime is 55193189. The reversal of 55193173 is 37139155.

55193173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55193173 - 2⁵ = 55193141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55194173) 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 in 3 ways as a sum of consecutive naturals, for example, 3942363 + ... + 3942376.

It is an arithmetic number, because the mean of its divisors is an integer number (15769480).

Almost surely, 2^55193173 is an apocalyptic number.

It is an amenable number.

55193173 is a deficient number, since it is larger than the sum of its proper divisors (7884747).

55193173 is an equidigital number, since it uses as much as digits as its factorization.

55193173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884746.

The product of its digits is 14175, while the sum is 34.

The square root of 55193173 is about 7429.2107925405. The cubic root of 55193173 is about 380.7399547718.

The spelling of 55193173 in words is "fifty-five million, one hundred ninety-three thousand, one hundred seventy-three".