55136255189 has 2 divisors, whose sum is σ = 55136255190. Its totient is φ = 55136255188.

The previous prime is 55136255177. The next prime is 55136255221. The reversal of 55136255189 is 98155263155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53295416164 + 1840839025 = 230858^2 + 42905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55136255189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55136255689) 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, 27568127594 + 27568127595.

It is an arithmetic number, because the mean of its divisors is an integer number (27568127595).

Almost surely, 2^55136255189 is an apocalyptic number.

It is an amenable number.

55136255189 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136255189 is an equidigital number, since it uses as much as digits as its factorization.

55136255189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620000, while the sum is 50.

The spelling of 55136255189 in words is "fifty-five billion, one hundred thirty-six million, two hundred fifty-five thousand, one hundred eighty-nine".