55189093 has 4 divisors (see below), whose sum is σ = 55339840. Its totient is φ = 55038348.

The previous prime is 55189073. The next prime is 55189097. The reversal of 55189093 is 39098155.

55189093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39098155 = 5 ⋅7819631.

It is a cyclic number.

It is not a de Polignac number, because 55189093 - 2¹³ = 55180901 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 (55189097) 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 3 ways as a sum of consecutive naturals, for example, 74823 + ... + 75556.

It is an arithmetic number, because the mean of its divisors is an integer number (13834960).

Almost surely, 2^55189093 is an apocalyptic number.

It is an amenable number.

55189093 is a deficient number, since it is larger than the sum of its proper divisors (150747).

55189093 is a wasteful number, since it uses less digits than its factorization.

55189093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150746.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 55189093 is about 7428.9361957147. The cubic root of 55189093 is about 380.7305728307.

The spelling of 55189093 in words is "fifty-five million, one hundred eighty-nine thousand, ninety-three".