55173830 has 16 divisors (see below), whose sum is σ = 100796400. Its totient is φ = 21739872.

The previous prime is 55173827. The next prime is 55173841. The reversal of 55173830 is 3837155.

55173830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40505 + ... + 41844.

It is an arithmetic number, because the mean of its divisors is an integer number (6299775).

Almost surely, 2^55173830 is an apocalyptic number.

55173830 is a deficient number, since it is larger than the sum of its proper divisors (45622570).

55173830 is a wasteful number, since it uses less digits than its factorization.

55173830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82423.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 55173830 is about 7427.9088578146. The cubic root of 55173830 is about 380.6954715320.

The spelling of 55173830 in words is "fifty-five million, one hundred seventy-three thousand, eight hundred thirty".