5555009 has 2 divisors, whose sum is σ = 5555010. Its totient is φ = 5555008.

The previous prime is 5554993. The next prime is 5555021. The reversal of 5555009 is 9005555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 1555009 = 2000^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555009 - 2⁴ = 5554993 is a prime.

It is not a weakly prime, because it can be changed into another prime (5555059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777504 + 2777505.

It is an arithmetic number, because the mean of its divisors is an integer number (2777505).

Almost surely, 2^5555009 is an apocalyptic number.

It is an amenable number.

5555009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555009 is an equidigital number, since it uses as much as digits as its factorization.

5555009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5625, while the sum is 29.

The square root of 5555009 is about 2356.9066591615. The cubic root of 5555009 is about 177.1039533205.

The spelling of 5555009 in words is "five million, five hundred fifty-five thousand, nine".