55102199 has 2 divisors, whose sum is σ = 55102200. Its totient is φ = 55102198.

The previous prime is 55102193. The next prime is 55102217. The reversal of 55102199 is 99120155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55102199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55102193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27551099 + 27551100.

It is an arithmetic number, because the mean of its divisors is an integer number (27551100).

Almost surely, 2^55102199 is an apocalyptic number.

55102199 is a deficient number, since it is larger than the sum of its proper divisors (1).

55102199 is an equidigital number, since it uses as much as digits as its factorization.

55102199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 55102199 is about 7423.0855444350. The cubic root of 55102199 is about 380.5306505954.

The spelling of 55102199 in words is "fifty-five million, one hundred two thousand, one hundred ninety-nine".