565480 has 32 divisors (see below), whose sum is σ = 1297440. Its totient is φ = 221760.

The previous prime is 565469. The next prime is 565483. The reversal of 565480 is 84565.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (565483) 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 7 ways as a sum of consecutive naturals, for example, 2575 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (40545).

2⁵⁶⁵⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 565480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648720).

565480 is an abundant number, since it is smaller than the sum of its proper divisors (731960).

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

565480 is a wasteful number, since it uses less digits than its factorization.

565480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 565480 is about 751.9840423839. The cubic root of 565480 is about 82.6936985247.

The spelling of 565480 in words is "five hundred sixty-five thousand, four hundred eighty".