48545809 has 4 divisors (see below), whose sum is σ = 52280116. Its totient is φ = 44811504.

The previous prime is 48545807. The next prime is 48545821. The reversal of 48545809 is 90854584.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4190209 + 44355600 = 2047^2 + 6660^2 .

It is a cyclic number.

It is not a de Polignac number, because 48545809 - 2¹ = 48545807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48545807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867134 + ... + 1867159.

It is an arithmetic number, because the mean of its divisors is an integer number (13070029).

Almost surely, 2^48545809 is an apocalyptic number.

It is an amenable number.

48545809 is a deficient number, since it is larger than the sum of its proper divisors (3734307).

48545809 is a wasteful number, since it uses less digits than its factorization.

48545809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734306.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 48545809 is about 6967.4822568845. The cubic root of 48545809 is about 364.7964311787.

The spelling of 48545809 in words is "forty-eight million, five hundred forty-five thousand, eight hundred nine".