543455545 has 4 divisors (see below), whose sum is σ = 652146660. Its totient is φ = 434764432.

The previous prime is 543455509. The next prime is 543455551. The reversal of 543455545 is 545554345.

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

It can be written as a sum of positive squares in 2 ways, for example, as 114468601 + 428986944 = 10699^2 + 20712^2 .

It is a cyclic number.

It is not a de Polignac number, because 543455545 - 2⁷ = 543455417 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 543455498 and 543455507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54345550 + ... + 54345559.

It is an arithmetic number, because the mean of its divisors is an integer number (163036665).

Almost surely, 2^543455545 is an apocalyptic number.

It is an amenable number.

543455545 is a deficient number, since it is larger than the sum of its proper divisors (108691115).

543455545 is a wasteful number, since it uses less digits than its factorization.

543455545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108691114.

The product of its digits is 600000, while the sum is 40.

The square root of 543455545 is about 23312.1329997922. The cubic root of 543455545 is about 816.0585915453.

The spelling of 543455545 in words is "five hundred forty-three million, four hundred fifty-five thousand, five hundred forty-five".