205225616 has 20 divisors (see below), whose sum is σ = 401726892. Its totient is φ = 101554176.

The previous prime is 205225613. The next prime is 205225621. The reversal of 205225616 is 616522502.

It can be written as a sum of positive squares in 2 ways, for example, as 86415616 + 118810000 = 9296^2 + 10900^2 .

It is not an unprimeable number, because it can be changed into a prime (205225613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64565 + ... + 67668.

Almost surely, 2^205225616 is an apocalyptic number.

It is an amenable number.

205225616 is a deficient number, since it is larger than the sum of its proper divisors (196501276).

205225616 is a wasteful number, since it uses less digits than its factorization.

205225616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132338 (or 132332 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 205225616 is about 14325.6977491500. The cubic root of 205225616 is about 589.8530860864.

The spelling of 205225616 in words is "two hundred five million, two hundred twenty-five thousand, six hundred sixteen".