200725609 has 6 divisors (see below), whose sum is σ = 233497194. Its totient is φ = 172050480.

The previous prime is 200725523. The next prime is 200725619. The reversal of 200725609 is 906527002.

It can be written as a sum of positive squares in only one way, i.e., 190357209 + 10368400 = 13797^2 + 3220^2 .

It is not a de Polignac number, because 200725609 - 2¹⁹ = 200201321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200725619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2048172 + ... + 2048269.

It is an arithmetic number, because the mean of its divisors is an integer number (38916199).

Almost surely, 2^200725609 is an apocalyptic number.

It is an amenable number.

200725609 is a deficient number, since it is larger than the sum of its proper divisors (32771585).

200725609 is an equidigital number, since it uses as much as digits as its factorization.

200725609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096455 (or 4096448 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 200725609 is about 14167.7665494601. The cubic root of 200725609 is about 585.5099252691.

The spelling of 200725609 in words is "two hundred million, seven hundred twenty-five thousand, six hundred nine".