65452209 has 8 divisors (see below), whose sum is σ = 87336480. Its totient is φ = 43601376.

The previous prime is 65452187. The next prime is 65452213. The reversal of 65452209 is 90225456.

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

It is not a de Polignac number, because 65452209 - 2⁷ = 65452081 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 65452209.

It is not an unprimeable number, because it can be changed into a prime (65452249) 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, 3364 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (10917060).

Almost surely, 2^65452209 is an apocalyptic number.

It is an amenable number.

65452209 is a deficient number, since it is larger than the sum of its proper divisors (21884271).

65452209 is a wasteful number, since it uses less digits than its factorization.

65452209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16719.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 65452209 is about 8090.2539515147. The cubic root of 65452209 is about 403.0028364402.

The spelling of 65452209 in words is "sixty-five million, four hundred fifty-two thousand, two hundred nine".