55192219 has 2 divisors, whose sum is σ = 55192220. Its totient is φ = 55192218.

The previous prime is 55192211. The next prime is 55192223. The reversal of 55192219 is 91229155.

55192219 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 55192219 - 2³ = 55192211 is a prime.

It is a super-2 number, since 2×55192219² = 6092362076287922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55192211) 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, 27596109 + 27596110.

It is an arithmetic number, because the mean of its divisors is an integer number (27596110).

Almost surely, 2^55192219 is an apocalyptic number.

55192219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55192219 is an equidigital number, since it uses as much as digits as its factorization.

55192219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 34.

The square root of 55192219 is about 7429.1465862507. The cubic root of 55192219 is about 380.7377610947.

The spelling of 55192219 in words is "fifty-five million, one hundred ninety-two thousand, two hundred nineteen".