563969365 has 8 divisors (see below), whose sum is σ = 677105208. Its totient is φ = 450947520.

The previous prime is 563969359. The next prime is 563969369.

It is a happy number.

563969365 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 133240849 + 430728516 = 11543^2 + 20754^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-563969365 is a prime.

It is a super-2 number, since 2×563969365² = 636122889317006450, 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 (563969369) 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 7 ways as a sum of consecutive naturals, for example, 17206 + ... + 37735.

It is an arithmetic number, because the mean of its divisors is an integer number (84638151).

Almost surely, 2^563969365 is an apocalyptic number.

It is an amenable number.

563969365 is a deficient number, since it is larger than the sum of its proper divisors (113135843).

563969365 is a wasteful number, since it uses less digits than its factorization.

563969365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56999.

The product of its digits is 3936600, while the sum is 52.

The square root of 563969365 is about 23748.0391822146. The cubic root of 563969365 is about 826.1999630202.

The spelling of 563969365 in words is "five hundred sixty-three million, nine hundred sixty-nine thousand, three hundred sixty-five".