54999278947 has 2 divisors, whose sum is σ = 54999278948. Its totient is φ = 54999278946.

The previous prime is 54999278933. The next prime is 54999279001. The reversal of 54999278947 is 74987299945.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54999278947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54999278947.

It is not a weakly prime, because it can be changed into another prime (54999278927) 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, 27499639473 + 27499639474.

It is an arithmetic number, because the mean of its divisors is an integer number (27499639474).

Almost surely, 2^54999278947 is an apocalyptic number.

54999278947 is a deficient number, since it is larger than the sum of its proper divisors (1).

54999278947 is an equidigital number, since it uses as much as digits as its factorization.

54999278947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 411505920, while the sum is 73.

The spelling of 54999278947 in words is "fifty-four billion, nine hundred ninety-nine million, two hundred seventy-eight thousand, nine hundred forty-seven".