204065225 has 48 divisors (see below), whose sum is σ = 327895680. Its totient is φ = 122342400.

The previous prime is 204065221. The next prime is 204065287. The reversal of 204065225 is 522560402.

It is not a de Polignac number, because 204065225 - 2² = 204065221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204065194 and 204065203.

It is not an unprimeable number, because it can be changed into a prime (204065221) 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 47 ways as a sum of consecutive naturals, for example, 40865 + ... + 45585.

It is an arithmetic number, because the mean of its divisors is an integer number (6831160).

Almost surely, 2^204065225 is an apocalyptic number.

204065225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204065225 is a deficient number, since it is larger than the sum of its proper divisors (123830455).

204065225 is a wasteful number, since it uses less digits than its factorization.

204065225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 204065225 is about 14285.1400063143. The cubic root of 204065225 is about 588.7392642624.

The spelling of 204065225 in words is "two hundred four million, sixty-five thousand, two hundred twenty-five".