55651001191 has 2 divisors, whose sum is σ = 55651001192. Its totient is φ = 55651001190.

The previous prime is 55651001183. The next prime is 55651001201. The reversal of 55651001191 is 19110015655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55651001191 - 2³ = 55651001183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55651041191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825500595 + 27825500596.

It is an arithmetic number, because the mean of its divisors is an integer number (27825500596).

Almost surely, 2^55651001191 is an apocalyptic number.

55651001191 is a deficient number, since it is larger than the sum of its proper divisors (1).

55651001191 is an equidigital number, since it uses as much as digits as its factorization.

55651001191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 34.

The spelling of 55651001191 in words is "fifty-five billion, six hundred fifty-one million, one thousand, one hundred ninety-one".