545220550243 has 8 divisors (see below), whose sum is σ = 545433529760. Its totient is φ = 545007623040.

The previous prime is 545220550211. The next prime is 545220550247. The reversal of 545220550243 is 342055022545.

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 545220550243 - 2⁵ = 545220550211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545220550247) 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, 41904523 + ... + 41917531.

It is an arithmetic number, because the mean of its divisors is an integer number (68179191220).

Almost surely, 2^545220550243 is an apocalyptic number.

545220550243 is a deficient number, since it is larger than the sum of its proper divisors (212979517).

545220550243 is a wasteful number, since it uses less digits than its factorization.

545220550243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26157.

The product of its (nonzero) digits is 240000, while the sum is 37.

Adding to 545220550243 its reverse (342055022545), we get a palindrome (887275572788).

The spelling of 545220550243 in words is "five hundred forty-five billion, two hundred twenty million, five hundred fifty thousand, two hundred forty-three".