204040325 has 12 divisors (see below), whose sum is σ = 253699908. Its totient is φ = 162787200.

The previous prime is 204040271. The next prime is 204040363. The reversal of 204040325 is 523040402.

It can be written as a sum of positive squares in 6 ways, for example, as 41809156 + 162231169 = 6466^2 + 12737^2 .

It is a de Polignac number, because none of the positive numbers 2^k-204040325 is a prime.

It is a super-2 number, since 2×204040325² = 83264908452211250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204040297 and 204040306.

It is a congruent number.

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, 1616 + ... + 20265.

It is an arithmetic number, because the mean of its divisors is an integer number (21141659).

Almost surely, 2^204040325 is an apocalyptic number.

204040325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204040325 is a deficient number, since it is larger than the sum of its proper divisors (49659583).

204040325 is a wasteful number, since it uses less digits than its factorization.

204040325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22264 (or 22259 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 204040325 is about 14284.2684446912. The cubic root of 204040325 is about 588.7153173373.

Adding to 204040325 its reverse (523040402), we get a palindrome (727080727).

The spelling of 204040325 in words is "two hundred four million, forty thousand, three hundred twenty-five".