55127219 has 4 divisors (see below), whose sum is σ = 63002544. Its totient is φ = 47251896.

The previous prime is 55127203. The next prime is 55127239. The reversal of 55127219 is 91272155.

It is a happy number.

55127219 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.

It is a cyclic number.

It is not a de Polignac number, because 55127219 - 2⁴ = 55127203 is a prime.

It is a super-3 number, since 3×55127219³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55127239) 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, 3937652 + ... + 3937665.

It is an arithmetic number, because the mean of its divisors is an integer number (15750636).

Almost surely, 2^55127219 is an apocalyptic number.

55127219 is a deficient number, since it is larger than the sum of its proper divisors (7875325).

55127219 is an equidigital number, since it uses as much as digits as its factorization.

55127219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875324.

The product of its digits is 6300, while the sum is 32.

The square root of 55127219 is about 7424.7706361880. The cubic root of 55127219 is about 380.5882371429.

The spelling of 55127219 in words is "fifty-five million, one hundred twenty-seven thousand, two hundred nineteen".