54993995971 has 2 divisors, whose sum is σ = 54993995972. Its totient is φ = 54993995970.

The previous prime is 54993995911. The next prime is 54993995989. The reversal of 54993995971 is 17959939945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54993995971 - 2¹⁷ = 54993864899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54993995971.

It is not a weakly prime, because it can be changed into another prime (54993995911) 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, 27496997985 + 27496997986.

It is an arithmetic number, because the mean of its divisors is an integer number (27496997986).

Almost surely, 2^54993995971 is an apocalyptic number.

54993995971 is a deficient number, since it is larger than the sum of its proper divisors (1).

54993995971 is an equidigital number, since it uses as much as digits as its factorization.

54993995971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124002900, while the sum is 70.

The spelling of 54993995971 in words is "fifty-four billion, nine hundred ninety-three million, nine hundred ninety-five thousand, nine hundred seventy-one".