205007025 has 12 divisors (see below), whose sum is σ = 338945072. Its totient is φ = 109337040.

The previous prime is 205006969. The next prime is 205007039. The reversal of 205007025 is 520700502.

It is not a de Polignac number, because 205007025 - 2⁷ = 205006897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205006992 and 205007010.

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, 1366639 + ... + 1366788.

Almost surely, 2^205007025 is an apocalyptic number.

205007025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205007025 is a deficient number, since it is larger than the sum of its proper divisors (133938047).

205007025 is a wasteful number, since it uses less digits than its factorization.

205007025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733440 (or 2733435 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 205007025 is about 14318.0663848161. The cubic root of 205007025 is about 589.6435892029.

Adding to 205007025 its reverse (520700502), we get a palindrome (725707527).

The spelling of 205007025 in words is "two hundred five million, seven thousand, twenty-five".