545273472 has 64 divisors (see below), whose sum is σ = 1463414400. Its totient is φ = 179871744.

The previous prime is 545273467. The next prime is 545273513. The reversal of 545273472 is 274372545.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 545273472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29929 + ... + 44567.

It is an arithmetic number, because the mean of its divisors is an integer number (22865850).

Almost surely, 2^545273472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545273472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731707200).

545273472 is an abundant number, since it is smaller than the sum of its proper divisors (918140928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545273472 is a wasteful number, since it uses less digits than its factorization.

545273472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753 (or 14741 counting only the distinct ones).

The product of its digits is 235200, while the sum is 39.

The square root of 545273472 is about 23351.0914520071. The cubic root of 545273472 is about 816.9675182732.

The spelling of 545273472 in words is "five hundred forty-five million, two hundred seventy-three thousand, four hundred seventy-two".