55849191 has 8 divisors (see below), whose sum is σ = 75302640. Its totient is φ = 36814272.

The previous prime is 55849187. The next prime is 55849193. The reversal of 55849191 is 19194855.

55849191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55849191 - 2² = 55849187 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55849193) by changing a digit.

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, 104320 + ... + 104853.

It is an arithmetic number, because the mean of its divisors is an integer number (9412830).

Almost surely, 2^55849191 is an apocalyptic number.

55849191 is a deficient number, since it is larger than the sum of its proper divisors (19453449).

55849191 is a wasteful number, since it uses less digits than its factorization.

55849191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209265.

The product of its digits is 64800, while the sum is 42.

The square root of 55849191 is about 7473.2316302922. The cubic root of 55849191 is about 382.2424906093.

The spelling of 55849191 in words is "fifty-five million, eight hundred forty-nine thousand, one hundred ninety-one".