563121363 has 16 divisors (see below), whose sum is σ = 860692736. Its totient is φ = 320807520.

The previous prime is 563121329. The next prime is 563121371. The reversal of 563121363 is 363121365.

It is a happy number.

It is not a de Polignac number, because 563121363 - 2¹² = 563117267 is a prime.

It is a Smith number, since the sum of its digits (30) 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 self number, because there is not a number n which added to its sum of digits gives 563121363.

It is not an unprimeable number, because it can be changed into a prime (563111363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33556 + ... + 47457.

It is an arithmetic number, because the mean of its divisors is an integer number (53793296).

Almost surely, 2^563121363 is an apocalyptic number.

563121363 is a deficient number, since it is larger than the sum of its proper divisors (297571373).

563121363 is a wasteful number, since it uses less digits than its factorization.

563121363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81354.

The product of its digits is 9720, while the sum is 30.

The square root of 563121363 is about 23730.1783179141. The cubic root of 563121363 is about 825.7856552487.

It can be divided in two parts, 56312 and 1363, that added together give a palindrome (57675).

The spelling of 563121363 in words is "five hundred sixty-three million, one hundred twenty-one thousand, three hundred sixty-three".