5555993 has 2 divisors, whose sum is σ = 5555994. Its totient is φ = 5555992.

The previous prime is 5555989. The next prime is 5556017. The reversal of 5555993 is 3995555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3948169 + 1607824 = 1987^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555993 - 2² = 5555989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5555993.

It is not a weakly prime, because it can be changed into another prime (5555983) 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, 2777996 + 2777997.

It is an arithmetic number, because the mean of its divisors is an integer number (2777997).

Almost surely, 2^5555993 is an apocalyptic number.

It is an amenable number.

5555993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555993 is an equidigital number, since it uses as much as digits as its factorization.

5555993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151875, while the sum is 41.

The square root of 5555993 is about 2357.1153981085. The cubic root of 5555993 is about 177.1144099493.

The spelling of 5555993 in words is "five million, five hundred fifty-five thousand, nine hundred ninety-three".