545504243 has 8 divisors (see below), whose sum is σ = 556769280. Its totient is φ = 534348360.

The previous prime is 545504237. The next prime is 545504251. The reversal of 545504243 is 342405545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545504243 - 2⁴ = 545504227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545504203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17153 + ... + 37218.

It is an arithmetic number, because the mean of its divisors is an integer number (69596160).

Almost surely, 2^545504243 is an apocalyptic number.

545504243 is a deficient number, since it is larger than the sum of its proper divisors (11265037).

545504243 is a wasteful number, since it uses less digits than its factorization.

545504243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54577.

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 545504243 is about 23356.0322614951. The cubic root of 545504243 is about 817.0827545294.

Adding to 545504243 its reverse (342405545), we get a palindrome (887909788).

The spelling of 545504243 in words is "five hundred forty-five million, five hundred four thousand, two hundred forty-three".