200540225 has 24 divisors (see below), whose sum is σ = 257488728. Its totient is φ = 154828800.

The previous prime is 200540203. The next prime is 200540251. The reversal of 200540225 is 522045002.

It can be written as a sum of positive squares in 12 ways, for example, as 73685056 + 126855169 = 8584^2 + 11263^2 .

It is not a de Polignac number, because 200540225 - 2⁶ = 200540161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200540197 and 200540206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98417 + ... + 100433.

It is an arithmetic number, because the mean of its divisors is an integer number (10728697).

Almost surely, 2^200540225 is an apocalyptic number.

200540225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

200540225 is a deficient number, since it is larger than the sum of its proper divisors (56948503).

200540225 is a wasteful number, since it uses less digits than its factorization.

200540225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2160 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 200540225 is about 14161.2225814016. Note that the first 3 decimals coincide. The cubic root of 200540225 is about 585.3296167612.

Adding to 200540225 its reverse (522045002), we get a palindrome (722585227).

The spelling of 200540225 in words is "two hundred million, five hundred forty thousand, two hundred twenty-five".