55202219 has 2 divisors, whose sum is σ = 55202220. Its totient is φ = 55202218.

The previous prime is 55202207. The next prime is 55202233. The reversal of 55202219 is 91220255.

55202219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55202219 - 2⁸ = 55201963 is a prime.

It is a super-2 number, since 2×55202219² = 6094569965047922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55202269) 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, 27601109 + 27601110.

It is an arithmetic number, because the mean of its divisors is an integer number (27601110).

Almost surely, 2^55202219 is an apocalyptic number.

55202219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55202219 is an equidigital number, since it uses as much as digits as its factorization.

55202219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 55202219 is about 7429.8195805820. The cubic root of 55202219 is about 380.7607543581.

The spelling of 55202219 in words is "fifty-five million, two hundred two thousand, two hundred nineteen".