205002025 has 12 divisors (see below), whose sum is σ = 254795200. Its totient is φ = 163619280.

The previous prime is 205001981. The next prime is 205002037. The reversal of 205002025 is 520200502.

It is not a de Polignac number, because 205002025 - 2⁷ = 205001897 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, 1636 + ... + 20314.

Almost surely, 2^205002025 is an apocalyptic number.

205002025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205002025 is a deficient number, since it is larger than the sum of its proper divisors (49793175).

205002025 is a wasteful number, since it uses less digits than its factorization.

205002025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19128 (or 19123 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 205002025 is about 14317.8917791692. The cubic root of 205002025 is about 589.6387954778.

Adding to 205002025 its reverse (520200502), we get a palindrome (725202527).

The spelling of 205002025 in words is "two hundred five million, two thousand, twenty-five".