55441971199 has 2 divisors, whose sum is σ = 55441971200. Its totient is φ = 55441971198.

The previous prime is 55441971197. The next prime is 55441971209. The reversal of 55441971199 is 99117914455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55441971199 - 2¹ = 55441971197 is a prime.

Together with 55441971197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55441971197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27720985599 + 27720985600.

It is an arithmetic number, because the mean of its divisors is an integer number (27720985600).

Almost surely, 2^55441971199 is an apocalyptic number.

55441971199 is a deficient number, since it is larger than the sum of its proper divisors (1).

55441971199 is an equidigital number, since it uses as much as digits as its factorization.

55441971199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 55.

The spelling of 55441971199 in words is "fifty-five billion, four hundred forty-one million, nine hundred seventy-one thousand, one hundred ninety-nine".