204541025 has 24 divisors (see below), whose sum is σ = 289215864. Its totient is φ = 142156800.

The previous prime is 204541021. The next prime is 204541027. The reversal of 204541025 is 520145402.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 110082064 + 94458961 = 10492^2 + 9719^2 .

It is not a de Polignac number, because 204541025 - 2² = 204541021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204541021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12986 + ... + 24035.

It is an arithmetic number, because the mean of its divisors is an integer number (12050661).

Almost surely, 2^204541025 is an apocalyptic number.

204541025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204541025 is a deficient number, since it is larger than the sum of its proper divisors (84674839).

204541025 is a wasteful number, since it uses less digits than its factorization.

204541025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37061 (or 37056 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 204541025 is about 14301.7839796300. The cubic root of 204541025 is about 589.1964787174.

Adding to 204541025 its reverse (520145402), we get a palindrome (724686427).

The spelling of 204541025 in words is "two hundred four million, five hundred forty-one thousand, twenty-five".