205000425 has 72 divisors (see below), whose sum is σ = 425619584. Its totient is φ = 92378880.

The previous prime is 205000381. The next prime is 205000457. The reversal of 205000425 is 524000502.

It is not a de Polignac number, because 205000425 - 2⁹ = 204999913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205000398 and 205000407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 114084 + ... + 115866.

Almost surely, 2^205000425 is an apocalyptic number.

205000425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205000425 is an abundant number, since it is smaller than the sum of its proper divisors (220619159).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205000425 is a wasteful number, since it uses less digits than its factorization.

205000425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 205000425 is about 14317.8359049124. The cubic root of 205000425 is about 589.6372614694.

Adding to 205000425 its reverse (524000502), we get a palindrome (729000927).

The spelling of 205000425 in words is "two hundred five million, four hundred twenty-five", and thus it is an aban number.