65006 has 4 divisors (see below), whose sum is σ = 97512. Its totient is φ = 32502.

The previous prime is 65003. The next prime is 65011. The reversal of 65006 is 60056.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16250 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (24378).

2⁶⁵⁰⁰⁶ is an apocalyptic number.

65006 is a deficient number, since it is larger than the sum of its proper divisors (32506).

65006 is a wasteful number, since it uses less digits than its factorization.

65006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32505.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 65006 is about 254.9627423762. The cubic root of 65006 is about 40.2084946942.

Subtracting from 65006 its reverse (60056), we obtain a triangular number (4950 = T₉₉).

The spelling of 65006 in words is "sixty-five thousand, six".