545437216 has 12 divisors (see below), whose sum is σ = 1073829582. Its totient is φ = 272718592.

The previous prime is 545437213. The next prime is 545437247. The reversal of 545437216 is 612734545.

It can be written as a sum of positive squares in only one way, i.e., 542890000 + 2547216 = 23300^2 + 1596^2 .

It is not an unprimeable number, because it can be changed into a prime (545437213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8522425 + ... + 8522488.

Almost surely, 2^545437216 is an apocalyptic number.

It is an amenable number.

545437216 is a deficient number, since it is larger than the sum of its proper divisors (528392366).

545437216 is a wasteful number, since it uses less digits than its factorization.

545437216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17044923 (or 17044915 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 545437216 is about 23354.5973204421. The cubic root of 545437216 is about 817.0492877264.

The spelling of 545437216 in words is "five hundred forty-five million, four hundred thirty-seven thousand, two hundred sixteen".