55286173 has 4 divisors (see below), whose sum is σ = 55302588. Its totient is φ = 55269760.

The previous prime is 55286171. The next prime is 55286183. The reversal of 55286173 is 37168255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18344089 + 36942084 = 4283^2 + 6078^2 .

It is a cyclic number.

It is not a de Polignac number, because 55286173 - 2¹ = 55286171 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 (55286171) 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, 1108 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (13825647).

Almost surely, 2^55286173 is an apocalyptic number.

It is an amenable number.

55286173 is a deficient number, since it is larger than the sum of its proper divisors (16415).

55286173 is a wasteful number, since it uses less digits than its factorization.

55286173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16414.

The product of its digits is 50400, while the sum is 37.

The square root of 55286173 is about 7435.4672348145. The cubic root of 55286173 is about 380.9536825732.

The spelling of 55286173 in words is "fifty-five million, two hundred eighty-six thousand, one hundred seventy-three".