55103173 has 4 divisors (see below), whose sum is σ = 58003360. Its totient is φ = 52202988.

The previous prime is 55103143. The next prime is 55103177. The reversal of 55103173 is 37130155.

55103173 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, and also an emirpimes, since its reverse is a distinct semiprime: 37130155 = 5 ⋅7426031.

It is a cyclic number.

It is not a de Polignac number, because 55103173 - 2²¹ = 53006021 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 (55103177) 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, 1450065 + ... + 1450102.

It is an arithmetic number, because the mean of its divisors is an integer number (14500840).

Almost surely, 2^55103173 is an apocalyptic number.

It is an amenable number.

55103173 is a deficient number, since it is larger than the sum of its proper divisors (2900187).

55103173 is a wasteful number, since it uses less digits than its factorization.

55103173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900186.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 55103173 is about 7423.1511502865. The cubic root of 55103173 is about 380.5328926999.

The spelling of 55103173 in words is "fifty-five million, one hundred three thousand, one hundred seventy-three".