543399563 has 12 divisors (see below), whose sum is σ = 665388360. Its totient is φ = 441256032.

The previous prime is 543399539. The next prime is 543399583. The reversal of 543399563 is 365993345.

It is a happy number.

It is not a de Polignac number, because 543399563 - 2¹⁶ = 543334027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (543399503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290906 + ... + 292767.

It is an arithmetic number, because the mean of its divisors is an integer number (55449030).

Almost surely, 2^543399563 is an apocalyptic number.

543399563 is a deficient number, since it is larger than the sum of its proper divisors (121988797).

543399563 is a wasteful number, since it uses less digits than its factorization.

543399563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583706 (or 583699 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 47.

The square root of 543399563 is about 23310.9322636397. The cubic root of 543399563 is about 816.0305695287.

The spelling of 543399563 in words is "five hundred forty-three million, three hundred ninety-nine thousand, five hundred sixty-three".