55186214 has 8 divisors (see below), whose sum is σ = 82864080. Its totient is φ = 27564856.

The previous prime is 55186189. The next prime is 55186247. The reversal of 55186214 is 41268155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11594 + ... + 15645.

It is an arithmetic number, because the mean of its divisors is an integer number (10358010).

Almost surely, 2^55186214 is an apocalyptic number.

55186214 is a deficient number, since it is larger than the sum of its proper divisors (27677866).

55186214 is a wasteful number, since it uses less digits than its factorization.

55186214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28254.

The product of its digits is 9600, while the sum is 32.

The square root of 55186214 is about 7428.7424238561. The cubic root of 55186214 is about 380.7239523053.

The spelling of 55186214 in words is "fifty-five million, one hundred eighty-six thousand, two hundred fourteen".