205025120 has 24 divisors (see below), whose sum is σ = 484372224. Its totient is φ = 82009984.

The previous prime is 205025111. The next prime is 205025129. The reversal of 205025120 is 21520502.

It is an interprime number because it is at equal distance from previous prime (205025111) and next prime (205025129).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205025129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 640544 + ... + 640863.

It is an arithmetic number, because the mean of its divisors is an integer number (20182176).

Almost surely, 2^205025120 is an apocalyptic number.

205025120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205025120 is an abundant number, since it is smaller than the sum of its proper divisors (279347104).

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

205025120 is a wasteful number, since it uses less digits than its factorization.

205025120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281422 (or 1281414 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 205025120 is about 14318.6982648563. The cubic root of 205025120 is about 589.6609370423.

Adding to 205025120 its reverse (21520502), we get a palindrome (226545622).

The spelling of 205025120 in words is "two hundred five million, twenty-five thousand, one hundred twenty".