65635 has 4 divisors (see below), whose sum is σ = 78768. Its totient is φ = 52504.

The previous prime is 65633. The next prime is 65647. The reversal of 65635 is 53656.

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

It is a cyclic number.

It is not a de Polignac number, because 65635 - 2¹ = 65633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (65633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6559 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (19692).

2⁶⁵⁶³⁵ is an apocalyptic number.

65635 is a deficient number, since it is larger than the sum of its proper divisors (13133).

65635 is a wasteful number, since it uses less digits than its factorization.

65635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132.

The product of its digits is 2700, while the sum is 25.

The square root of 65635 is about 256.1932864070. The cubic root of 65635 is about 40.3377648448.

The spelling of 65635 in words is "sixty-five thousand, six hundred thirty-five".