55142033189 has 2 divisors, whose sum is σ = 55142033190. Its totient is φ = 55142033188.

The previous prime is 55142033183. The next prime is 55142033231. The reversal of 55142033189 is 98133024155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53061122500 + 2080910689 = 230350^2 + 45617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55142033189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55142033183) 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, 27571016594 + 27571016595.

It is an arithmetic number, because the mean of its divisors is an integer number (27571016595).

Almost surely, 2^55142033189 is an apocalyptic number.

It is an amenable number.

55142033189 is a deficient number, since it is larger than the sum of its proper divisors (1).

55142033189 is an equidigital number, since it uses as much as digits as its factorization.

55142033189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 55142033189 in words is "fifty-five billion, one hundred forty-two million, thirty-three thousand, one hundred eighty-nine".