563665441 has 4 divisors (see below), whose sum is σ = 574300692. Its totient is φ = 553030192.

The previous prime is 563665423. The next prime is 563665463. The reversal of 563665441 is 144566365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144566365 = 5 ⋅28913273.

It can be written as a sum of positive squares in 2 ways, for example, as 412252416 + 151413025 = 20304^2 + 12305^2 .

It is a cyclic number.

It is not a de Polignac number, because 563665441 - 2⁹ = 563664929 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 563665394 and 563665403.

It is not an unprimeable number, because it can be changed into a prime (563665471) 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, 5317546 + ... + 5317651.

It is an arithmetic number, because the mean of its divisors is an integer number (143575173).

Almost surely, 2^563665441 is an apocalyptic number.

It is an amenable number.

563665441 is a deficient number, since it is larger than the sum of its proper divisors (10635251).

563665441 is a wasteful number, since it uses less digits than its factorization.

563665441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635250.

The product of its digits is 259200, while the sum is 40.

The square root of 563665441 is about 23741.6393915837. The cubic root of 563665441 is about 826.0515228548.

The spelling of 563665441 in words is "five hundred sixty-three million, six hundred sixty-five thousand, four hundred forty-one".