55348019 has 2 divisors, whose sum is σ = 55348020. Its totient is φ = 55348018.

The previous prime is 55348003. The next prime is 55348021. The reversal of 55348019 is 91084355.

55348019 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 55348019 - 2⁴ = 55348003 is a prime.

It is a super-2 number, since 2×55348019² = 6126806414448722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 55348021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55348019.

It is not a weakly prime, because it can be changed into another prime (55348049) 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, 27674009 + 27674010.

It is an arithmetic number, because the mean of its divisors is an integer number (27674010).

Almost surely, 2^55348019 is an apocalyptic number.

55348019 is a deficient number, since it is larger than the sum of its proper divisors (1).

55348019 is an equidigital number, since it uses as much as digits as its factorization.

55348019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55348019 is about 7439.6249233412. The cubic root of 55348019 is about 381.0956811978.

The spelling of 55348019 in words is "fifty-five million, three hundred forty-eight thousand, nineteen".