55386144067 has 2 divisors, whose sum is σ = 55386144068. Its totient is φ = 55386144066.

The previous prime is 55386144061. The next prime is 55386144101. The reversal of 55386144067 is 76044168355.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55386144067 is a prime.

It is a super-2 number, since 2×55386144067² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55386144067.

It is not a weakly prime, because it can be changed into another prime (55386144061) 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, 27693072033 + 27693072034.

It is an arithmetic number, because the mean of its divisors is an integer number (27693072034).

Almost surely, 2^55386144067 is an apocalyptic number.

55386144067 is a deficient number, since it is larger than the sum of its proper divisors (1).

55386144067 is an equidigital number, since it uses as much as digits as its factorization.

55386144067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 55386144067 in words is "fifty-five billion, three hundred eighty-six million, one hundred forty-four thousand, sixty-seven".