205007265 has 12 divisors (see below), whose sum is σ = 355346004. Its totient is φ = 109337184.

The previous prime is 205007251. The next prime is 205007281. The reversal of 205007265 is 562700502.

It can be written as a sum of positive squares in 2 ways, for example, as 86545809 + 118461456 = 9303^2 + 10884^2 .

It is not a de Polignac number, because 205007265 - 2²² = 200812961 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2277814 + ... + 2277903.

It is an arithmetic number, because the mean of its divisors is an integer number (29612167).

Almost surely, 2^205007265 is an apocalyptic number.

It is an amenable number.

205007265 is a deficient number, since it is larger than the sum of its proper divisors (150338739).

205007265 is a wasteful number, since it uses less digits than its factorization.

205007265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555728 (or 4555725 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 205007265 is about 14318.0747658336. The cubic root of 205007265 is about 589.6438192997.

Adding to 205007265 its reverse (562700502), we get a palindrome (767707767).

The spelling of 205007265 in words is "two hundred five million, seven thousand, two hundred sixty-five".