205434325 has 6 divisors (see below), whose sum is σ = 254738594. Its totient is φ = 164347440.

The previous prime is 205434293. The next prime is 205434391. The reversal of 205434325 is 523434502.

It can be written as a sum of positive squares in 3 ways, for example, as 171396 + 205262929 = 414^2 + 14327^2 .

It is not a de Polignac number, because 205434325 - 2⁵ = 205434293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205434293 and 205434302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4108662 + ... + 4108711.

Almost surely, 2^205434325 is an apocalyptic number.

205434325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205434325 is a deficient number, since it is larger than the sum of its proper divisors (49304269).

205434325 is an equidigital number, since it uses as much as digits as its factorization.

205434325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217383 (or 8217378 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 205434325 is about 14332.9803251103. The cubic root of 205434325 is about 590.0529733151.

Adding to 205434325 its reverse (523434502), we get a palindrome (728868827).

It can be divided in two parts, 20 and 5434325, that added together give a palindrome (5434345).

The spelling of 205434325 in words is "two hundred five million, four hundred thirty-four thousand, three hundred twenty-five".