5055509 has 2 divisors, whose sum is σ = 5055510. Its totient is φ = 5055508.

The previous prime is 5055503. The next prime is 5055521. The reversal of 5055509 is 9055505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 2316484 = 1655^2 + 1522^2 .

It is a cyclic number.

It is not a de Polignac number, because 5055509 - 2⁴ = 5055493 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5055503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527754 + 2527755.

It is an arithmetic number, because the mean of its divisors is an integer number (2527755).

Almost surely, 2^5055509 is an apocalyptic number.

It is an amenable number.

5055509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5055509 is an equidigital number, since it uses as much as digits as its factorization.

5055509 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 5055509 is about 2248.4459077327. The cubic root of 5055509 is about 171.6280609870.

The spelling of 5055509 in words is "five million, fifty-five thousand, five hundred nine".