55912173 has 16 divisors (see below), whose sum is σ = 76114176. Its totient is φ = 36498240.

The previous prime is 55912163. The next prime is 55912177. The reversal of 55912173 is 37121955.

It is not a de Polignac number, because 55912173 - 2⁵ = 55912141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55912177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50140 + ... + 51242.

It is an arithmetic number, because the mean of its divisors is an integer number (4757136).

Almost surely, 2^55912173 is an apocalyptic number.

It is an amenable number.

55912173 is a deficient number, since it is larger than the sum of its proper divisors (20202003).

55912173 is a wasteful number, since it uses less digits than its factorization.

55912173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its digits is 9450, while the sum is 33.

The square root of 55912173 is about 7477.4442826410. Note that the first 3 decimals coincide. The cubic root of 55912173 is about 382.3861235613.

The spelling of 55912173 in words is "fifty-five million, nine hundred twelve thousand, one hundred seventy-three".