55381163 has 2 divisors, whose sum is σ = 55381164. Its totient is φ = 55381162.

The previous prime is 55381147. The next prime is 55381177. The reversal of 55381163 is 36118355.

55381163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55381163 - 2⁴ = 55381147 is a prime.

It is not a weakly prime, because it can be changed into another prime (55381663) 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 as a sum of consecutive naturals, namely, 27690581 + 27690582.

It is an arithmetic number, because the mean of its divisors is an integer number (27690582).

Almost surely, 2^55381163 is an apocalyptic number.

55381163 is a deficient number, since it is larger than the sum of its proper divisors (1).

55381163 is an equidigital number, since it uses as much as digits as its factorization.

55381163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 55381163 is about 7441.8521216160. The cubic root of 55381163 is about 381.1717364030.

The spelling of 55381163 in words is "fifty-five million, three hundred eighty-one thousand, one hundred sixty-three".