563545231 has 4 divisors (see below), whose sum is σ = 565738272. Its totient is φ = 561352192.

The previous prime is 563545207. The next prime is 563545243. The reversal of 563545231 is 132545365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132545365 = 5 ⋅26509073.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563545231 is a prime.

It is a super-2 number, since 2×563545231² = 635166454765686722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563545201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096135 + ... + 1096648.

It is an arithmetic number, because the mean of its divisors is an integer number (141434568).

Almost surely, 2^563545231 is an apocalyptic number.

563545231 is a deficient number, since it is larger than the sum of its proper divisors (2193041).

563545231 is a wasteful number, since it uses less digits than its factorization.

563545231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193040.

The product of its digits is 54000, while the sum is 34.

The square root of 563545231 is about 23739.1076285525. The cubic root of 563545231 is about 825.9927961076.

The spelling of 563545231 in words is "five hundred sixty-three million, five hundred forty-five thousand, two hundred thirty-one".