5509997 has 2 divisors, whose sum is σ = 5509998. Its totient is φ = 5509996.

The previous prime is 5509979. The next prime is 5510009. The reversal of 5509997 is 7999055.

Together with previous prime (5509979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4024036 + 1485961 = 2006^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 5509997 - 2⁸ = 5509741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5509897) 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, 2754998 + 2754999.

It is an arithmetic number, because the mean of its divisors is an integer number (2754999).

Almost surely, 2^5509997 is an apocalyptic number.

It is an amenable number.

5509997 is a deficient number, since it is larger than the sum of its proper divisors (1).

5509997 is an equidigital number, since it uses as much as digits as its factorization.

5509997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127575, while the sum is 44.

The square root of 5509997 is about 2347.3382798395. The cubic root of 5509997 is about 176.6243001925.

The spelling of 5509997 in words is "five million, five hundred nine thousand, nine hundred ninety-seven".