564553963 has 4 divisors (see below), whose sum is σ = 573809008. Its totient is φ = 555298920.

The previous prime is 564553961. The next prime is 564554027. The reversal of 564553963 is 369355465.

It is a happy number.

564553963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 564553963 - 2¹ = 564553961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564553961) 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, 4627431 + ... + 4627552.

It is an arithmetic number, because the mean of its divisors is an integer number (143452252).

Almost surely, 2^564553963 is an apocalyptic number.

564553963 is a deficient number, since it is larger than the sum of its proper divisors (9255045).

564553963 is an equidigital number, since it uses as much as digits as its factorization.

564553963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255044.

The product of its digits is 1458000, while the sum is 46.

The square root of 564553963 is about 23760.3443367305. The cubic root of 564553963 is about 826.4853378914.

It can be divided in two parts, 564553 and 963, that added together give a triangular number (565516 = T₁₀₆₃).

The spelling of 564553963 in words is "five hundred sixty-four million, five hundred fifty-three thousand, nine hundred sixty-three".