54994993 has 2 divisors, whose sum is σ = 54994994. Its totient is φ = 54994992.

The previous prime is 54994963. The next prime is 54994997. The reversal of 54994993 is 39949945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49463089 + 5531904 = 7033^2 + 2352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54994993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54994993.

It is not a weakly prime, because it can be changed into another prime (54994997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27497496 + 27497497.

It is an arithmetic number, because the mean of its divisors is an integer number (27497497).

Almost surely, 2^54994993 is an apocalyptic number.

It is an amenable number.

54994993 is a deficient number, since it is larger than the sum of its proper divisors (1).

54994993 is an equidigital number, since it uses as much as digits as its factorization.

54994993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The square root of 54994993 is about 7415.8609075413. The cubic root of 54994993 is about 380.2837054938.

The spelling of 54994993 in words is "fifty-four million, nine hundred ninety-four thousand, nine hundred ninety-three".