65655 has 12 divisors (see below), whose sum is σ = 113880. Its totient is φ = 34992.

The previous prime is 65651. The next prime is 65657. The reversal of 65655 is 55656.

65655 is a `hidden beast` number, since 6 + 5 + 655 = 666.

It is not a de Polignac number, because 65655 - 2² = 65651 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65655.

It is not an unprimeable number, because it can be changed into a prime (65651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685 + ... + 774.

It is an arithmetic number, because the mean of its divisors is an integer number (9490).

2⁶⁵⁶⁵⁵ is an apocalyptic number.

65655 is a deficient number, since it is larger than the sum of its proper divisors (48225).

65655 is a wasteful number, since it uses less digits than its factorization.

65655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1467 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 65655 is about 256.2323164630. The cubic root of 65655 is about 40.3418616091.

Subtracting from 65655 its reverse (55656), we obtain a palindrome (9999).

It can be divided in two parts, 6 and 5655, that multiplied together give a triangular number (33930 = T₂₆₀).

The spelling of 65655 in words is "sixty-five thousand, six hundred fifty-five".