65522 has 6 divisors (see below), whose sum is σ = 98829. Its totient is φ = 32580.

The previous prime is 65521. The next prime is 65537. The reversal of 65522 is 22556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39601 + 25921 = 199^2 + 161^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=181.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 10 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 65494 and 65503.

It is not an unprimeable number, because it can be changed into a prime (65521) 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 in 2 ways as a sum of consecutive naturals, for example, 272 + ... + 452.

2⁶⁵⁵²² is an apocalyptic number.

65522 is a deficient number, since it is larger than the sum of its proper divisors (33307).

65522 is an equidigital number, since it uses as much as digits as its factorization.

65522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 183 counting only the distinct ones).

The product of its digits is 600, while the sum is 20.

The square root of 65522 is about 255.9726547895. The cubic root of 65522 is about 40.3146024783.

It can be divided in two parts, 65 and 522, that multiplied together give a triangular number (33930 = T₂₆₀).

The spelling of 65522 in words is "sixty-five thousand, five hundred twenty-two".