543545225 has 12 divisors (see below), whose sum is σ = 683231196. Its totient is φ = 428878080.

The previous prime is 543545221. The next prime is 543545239. The reversal of 543545225 is 522545345.

It can be written as a sum of positive squares in 6 ways, for example, as 105103504 + 438441721 = 10252^2 + 20939^2 .

It is not a de Polignac number, because 543545225 - 2² = 543545221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543545221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147092 + ... + 150741.

It is an arithmetic number, because the mean of its divisors is an integer number (56935933).

Almost surely, 2^543545225 is an apocalyptic number.

It is an amenable number.

543545225 is a deficient number, since it is larger than the sum of its proper divisors (139685971).

543545225 is a wasteful number, since it uses less digits than its factorization.

543545225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297916 (or 297911 counting only the distinct ones).

The product of its digits is 120000, while the sum is 35.

The square root of 543545225 is about 23314.0563823630. The cubic root of 543545225 is about 816.1034772217.

The spelling of 543545225 in words is "five hundred forty-three million, five hundred forty-five thousand, two hundred twenty-five".