563215963 has 4 divisors (see below), whose sum is σ = 563544568. Its totient is φ = 562887360.

The previous prime is 563215937. The next prime is 563215979. The reversal of 563215963 is 369512365.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563215963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563215463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161718 + ... + 165163.

It is an arithmetic number, because the mean of its divisors is an integer number (140886142).

Almost surely, 2^563215963 is an apocalyptic number.

563215963 is a deficient number, since it is larger than the sum of its proper divisors (328605).

563215963 is a wasteful number, since it uses less digits than its factorization.

563215963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328604.

The product of its digits is 145800, while the sum is 40.

The square root of 563215963 is about 23732.1714767107. The cubic root of 563215963 is about 825.8318945108.

The spelling of 563215963 in words is "five hundred sixty-three million, two hundred fifteen thousand, nine hundred sixty-three".