563341561 has 4 divisors (see below), whose sum is σ = 571749712. Its totient is φ = 554933412.

The previous prime is 563341549. The next prime is 563341573. The reversal of 563341561 is 165143365.

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, and also an emirpimes, since its reverse is a distinct semiprime: 165143365 = 5 ⋅33028673.

It is an interprime number because it is at equal distance from previous prime (563341549) and next prime (563341573).

It is a cyclic number.

It is not a de Polignac number, because 563341561 - 2⁹ = 563341049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563341861) 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, 4203975 + ... + 4204108.

It is an arithmetic number, because the mean of its divisors is an integer number (142937428).

Almost surely, 2^563341561 is an apocalyptic number.

It is an amenable number.

563341561 is a deficient number, since it is larger than the sum of its proper divisors (8408151).

563341561 is an equidigital number, since it uses as much as digits as its factorization.

563341561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408150.

The product of its digits is 32400, while the sum is 34.

The square root of 563341561 is about 23734.8174840254. The cubic root of 563341561 is about 825.8932771964.

The spelling of 563341561 in words is "five hundred sixty-three million, three hundred forty-one thousand, five hundred sixty-one".