55191044351 has 2 divisors, whose sum is σ = 55191044352. Its totient is φ = 55191044350.

The previous prime is 55191044317. The next prime is 55191044407. The reversal of 55191044351 is 15344019155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55191044351 - 2⁶ = 55191044287 is a prime.

It is a super-2 number, since 2×55191044351² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55191044851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27595522175 + 27595522176.

It is an arithmetic number, because the mean of its divisors is an integer number (27595522176).

Almost surely, 2^55191044351 is an apocalyptic number.

55191044351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55191044351 is an equidigital number, since it uses as much as digits as its factorization.

55191044351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 55191044351 in words is "fifty-five billion, one hundred ninety-one million, forty-four thousand, three hundred fifty-one".