205035125 has 8 divisors (see below), whose sum is σ = 255883992. Its totient is φ = 164028000.

The previous prime is 205035121. The next prime is 205035139. The reversal of 205035125 is 521530502.

205035125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 63377521 + 141657604 = 7961^2 + 11902^2 .

It is not a de Polignac number, because 205035125 - 2² = 205035121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205035125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205035121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820016 + ... + 820265.

It is an arithmetic number, because the mean of its divisors is an integer number (31985499).

Almost surely, 2^205035125 is an apocalyptic number.

205035125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205035125 is a deficient number, since it is larger than the sum of its proper divisors (50848867).

205035125 is an equidigital number, since it uses as much as digits as its factorization.

205035125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640296 (or 1640286 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 205035125 is about 14319.0476289452. The cubic root of 205035125 is about 589.6705284876.

Adding to 205035125 its reverse (521530502), we get a palindrome (726565627).

The spelling of 205035125 in words is "two hundred five million, thirty-five thousand, one hundred twenty-five".