55026837191 has 2 divisors, whose sum is σ = 55026837192. Its totient is φ = 55026837190.

The previous prime is 55026837161. The next prime is 55026837343. The reversal of 55026837191 is 19173862055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55026837191 is a prime.

It is a super-2 number, since 2×55026837191² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55026837161) 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, 27513418595 + 27513418596.

It is an arithmetic number, because the mean of its divisors is an integer number (27513418596).

Almost surely, 2^55026837191 is an apocalyptic number.

55026837191 is a deficient number, since it is larger than the sum of its proper divisors (1).

55026837191 is an equidigital number, since it uses as much as digits as its factorization.

55026837191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 55026837191 in words is "fifty-five billion, twenty-six million, eight hundred thirty-seven thousand, one hundred ninety-one".