55046219 has 2 divisors, whose sum is σ = 55046220. Its totient is φ = 55046218.

The previous prime is 55046207. The next prime is 55046227. The reversal of 55046219 is 91264055.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55046219 - 2¹⁶ = 54980683 is a prime.

It is a super-2 number, since 2×55046219² = 6060172452391922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55046279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27523109 + 27523110.

It is an arithmetic number, because the mean of its divisors is an integer number (27523110).

Almost surely, 2^55046219 is an apocalyptic number.

55046219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55046219 is an equidigital number, since it uses as much as digits as its factorization.

55046219 is an evil number, because the sum of its binary digits is even.

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

The square root of 55046219 is about 7419.3139170681. The cubic root of 55046219 is about 380.4017427109.

The spelling of 55046219 in words is "fifty-five million, forty-six thousand, two hundred nineteen".