45548509 has 8 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 44606496.

The previous prime is 45548501. The next prime is 45548539. The reversal of 45548509 is 90584554.

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

It is a cyclic number.

It is not a de Polignac number, because 45548509 - 2³ = 45548501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45548501) 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, 7132 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (5812560).

Almost surely, 2^45548509 is an apocalyptic number.

It is an amenable number.

45548509 is a deficient number, since it is larger than the sum of its proper divisors (951971).

45548509 is a wasteful number, since it uses less digits than its factorization.

45548509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 45548509 is about 6748.9635500571. The cubic root of 45548509 is about 357.1286743854.

The spelling of 45548509 in words is "forty-five million, five hundred forty-eight thousand, five hundred nine".