545303543 has 4 divisors (see below), whose sum is σ = 577380240. Its totient is φ = 513226848.

The previous prime is 545303537. The next prime is 545303621. The reversal of 545303543 is 345303545.

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 545303543 - 2¹⁴ = 545287159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545303513) 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, 16038323 + ... + 16038356.

It is an arithmetic number, because the mean of its divisors is an integer number (144345060).

Almost surely, 2^545303543 is an apocalyptic number.

545303543 is a deficient number, since it is larger than the sum of its proper divisors (32076697).

545303543 is a wasteful number, since it uses less digits than its factorization.

545303543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32076696.

The product of its (nonzero) digits is 54000, while the sum is 32.

The square root of 545303543 is about 23351.7353316622. The cubic root of 545303543 is about 816.9825361679.

The spelling of 545303543 in words is "five hundred forty-five million, three hundred three thousand, five hundred forty-three".