55054199 has 2 divisors, whose sum is σ = 55054200. Its totient is φ = 55054198.

The previous prime is 55054189. The next prime is 55054271. The reversal of 55054199 is 99145055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55054199 - 2⁴ = 55054183 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55054189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527099 + 27527100.

It is an arithmetic number, because the mean of its divisors is an integer number (27527100).

Almost surely, 2^55054199 is an apocalyptic number.

55054199 is a deficient number, since it is larger than the sum of its proper divisors (1).

55054199 is an equidigital number, since it uses as much as digits as its factorization.

55054199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 55054199 is about 7419.8516831538. The cubic root of 55054199 is about 380.4201239868.

The spelling of 55054199 in words is "fifty-five million, fifty-four thousand, one hundred ninety-nine".