5445205509 has 8 divisors (see below), whose sum is σ = 7260659872. Its totient is φ = 3629944080.

The previous prime is 5445205487. The next prime is 5445205517. The reversal of 5445205509 is 9055025445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5445205509 - 2⁹ = 5445204997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5445205559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41442 + ... + 112284.

It is an arithmetic number, because the mean of its divisors is an integer number (907582484).

Almost surely, 2^5445205509 is an apocalyptic number.

It is an amenable number.

5445205509 is a deficient number, since it is larger than the sum of its proper divisors (1815454363).

5445205509 is a wasteful number, since it uses less digits than its factorization.

5445205509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96467.

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 5445205509 is about 73791.6357658509. The cubic root of 5445205509 is about 1759.2926639594.

The spelling of 5445205509 in words is "five billion, four hundred forty-five million, two hundred five thousand, five hundred nine".