55361415191 has 2 divisors, whose sum is σ = 55361415192. Its totient is φ = 55361415190.

The previous prime is 55361415169. The next prime is 55361415209. The reversal of 55361415191 is 19151416355.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55361415191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55361415391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27680707595 + 27680707596.

It is an arithmetic number, because the mean of its divisors is an integer number (27680707596).

Almost surely, 2^55361415191 is an apocalyptic number.

55361415191 is a deficient number, since it is larger than the sum of its proper divisors (1).

55361415191 is an equidigital number, since it uses as much as digits as its factorization.

55361415191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 41.

The spelling of 55361415191 in words is "fifty-five billion, three hundred sixty-one million, four hundred fifteen thousand, one hundred ninety-one".