48216209 has 4 divisors (see below), whose sum is σ = 48241380. Its totient is φ = 48191040.

The previous prime is 48216197. The next prime is 48216221. The reversal of 48216209 is 90261284.

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

It is an interprime number because it is at equal distance from previous prime (48216197) and next prime (48216221).

It can be written as a sum of positive squares in 2 ways, for example, as 33965584 + 14250625 = 5828^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 48216209 - 2¹² = 48212113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48216229) 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, 9452 + ... + 13629.

It is an arithmetic number, because the mean of its divisors is an integer number (12060345).

Almost surely, 2^48216209 is an apocalyptic number.

It is an amenable number.

48216209 is a deficient number, since it is larger than the sum of its proper divisors (25171).

48216209 is a wasteful number, since it uses less digits than its factorization.

48216209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25170.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 48216209 is about 6943.7892393131. The cubic root of 48216209 is about 363.9689649706.

The spelling of 48216209 in words is "forty-eight million, two hundred sixteen thousand, two hundred nine".