563945 has 12 divisors (see below), whose sum is σ = 704196. Its totient is φ = 433440.

The previous prime is 563933. The next prime is 563947. The reversal of 563945 is 549365.

It is a happy number.

563945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 90601 + 473344 = 301^2 + 688^2 .

It is not a de Polignac number, because 563945 - 2⁴ = 563929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (563947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9215 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (58683).

2⁵⁶³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

563945 is a deficient number, since it is larger than the sum of its proper divisors (140251).

563945 is an equidigital number, since it uses as much as digits as its factorization.

563945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 109 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 563945 is about 750.9627154526. The cubic root of 563945 is about 82.6188064825.

Subtracting from 563945 its product of digits (16200), we obtain a palindrome (547745).

The spelling of 563945 in words is "five hundred sixty-three thousand, nine hundred forty-five".