54565042139 has 2 divisors, whose sum is σ = 54565042140. Its totient is φ = 54565042138.

The previous prime is 54565042117. The next prime is 54565042211. The reversal of 54565042139 is 93124056545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54565042139 - 2¹² = 54565038043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54565042139.

It is not a weakly prime, because it can be changed into another prime (54565042639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27282521069 + 27282521070.

It is an arithmetic number, because the mean of its divisors is an integer number (27282521070).

Almost surely, 2^54565042139 is an apocalyptic number.

54565042139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54565042139 is an equidigital number, since it uses as much as digits as its factorization.

54565042139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 54565042139 in words is "fifty-four billion, five hundred sixty-five million, forty-two thousand, one hundred thirty-nine".