65480 has 16 divisors (see below), whose sum is σ = 147420. Its totient is φ = 26176.

The previous prime is 65479. The next prime is 65497. The reversal of 65480 is 8456.

It can be written as a sum of positive squares in 2 ways, for example, as 56644 + 8836 = 238^2 + 94^2 .

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65480.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779 + ... + 858.

65480 is a Friedman number, since it can be written as 4^(8+0)-56, using all its digits and the basic arithmetic operations.

2⁶⁵⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

65480 is an abundant number, since it is smaller than the sum of its proper divisors (81940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73710).

65480 is a wasteful number, since it uses less digits than its factorization.

65480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 65480 is about 255.8906016250. The cubic root of 65480 is about 40.3059866688.

It can be divided in two parts, 65 and 480, that added together give a palindrome (545).

The spelling of 65480 in words is "sixty-five thousand, four hundred eighty".