5450509 has 2 divisors, whose sum is σ = 5450510. Its totient is φ = 5450508.

The previous prime is 5450503. The next prime is 5450519. The reversal of 5450509 is 9050545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5428900 + 21609 = 2330^2 + 147^2 .

It is a cyclic number.

It is not a de Polignac number, because 5450509 - 2⁵ = 5450477 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5450503) 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, 2725254 + 2725255.

It is an arithmetic number, because the mean of its divisors is an integer number (2725255).

Almost surely, 2^5450509 is an apocalyptic number.

It is an amenable number.

5450509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5450509 is an equidigital number, since it uses as much as digits as its factorization.

5450509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 5450509 is about 2334.6325192629. The cubic root of 5450509 is about 175.9863647322.

The spelling of 5450509 in words is "five million, four hundred fifty thousand, five hundred nine".