563613 has 4 divisors (see below), whose sum is σ = 751488. Its totient is φ = 375740.

The previous prime is 563599. The next prime is 563623. The reversal of 563613 is 316365.

563613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 563613 - 2⁸ = 563357 is a prime.

It is a super-2 number, since 2×563613² = 635319227538, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93933 + ... + 93938.

It is an arithmetic number, because the mean of its divisors is an integer number (187872).

2⁵⁶³⁶¹³ is an apocalyptic number.

It is an amenable number.

563613 is a deficient number, since it is larger than the sum of its proper divisors (187875).

563613 is a wasteful number, since it uses less digits than its factorization.

563613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187874.

The product of its digits is 1620, while the sum is 24.

The square root of 563613 is about 750.7416333200. The cubic root of 563613 is about 82.6025904637.

Adding to 563613 its reverse (316365), we get a palindrome (879978).

It can be divided in two parts, 563 and 613, that added together give a triangular number (1176 = T₄₈).

The spelling of 563613 in words is "five hundred sixty-three thousand, six hundred thirteen".