55328173 has 4 divisors (see below), whose sum is σ = 55532608. Its totient is φ = 55123740.

The previous prime is 55328167. The next prime is 55328197. The reversal of 55328173 is 37182355.

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 55328173 - 2⁹ = 55327661 is a prime.

It is a super-2 number, since 2×55328173² = 6122413455035858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55328113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101811 + ... + 102352.

It is an arithmetic number, because the mean of its divisors is an integer number (13883152).

Almost surely, 2^55328173 is an apocalyptic number.

It is an amenable number.

55328173 is a deficient number, since it is larger than the sum of its proper divisors (204435).

55328173 is a wasteful number, since it uses less digits than its factorization.

55328173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204434.

The product of its digits is 25200, while the sum is 34.

The square root of 55328173 is about 7438.2909999542. The cubic root of 55328173 is about 381.0501262459.

The spelling of 55328173 in words is "fifty-five million, three hundred twenty-eight thousand, one hundred seventy-three".