204123525 has 24 divisors (see below), whose sum is σ = 340838304. Its totient is φ = 107784000.

The previous prime is 204123523. The next prime is 204123527. The reversal of 204123525 is 525321402.

It is an interprime number because it is at equal distance from previous prime (204123523) and next prime (204123527).

It is not a de Polignac number, because 204123525 - 2¹ = 204123523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204123495 and 204123504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204123523) 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 23 ways as a sum of consecutive naturals, for example, 5899 + ... + 21048.

It is an arithmetic number, because the mean of its divisors is an integer number (14201596).

Almost surely, 2^204123525 is an apocalyptic number.

204123525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204123525 is a deficient number, since it is larger than the sum of its proper divisors (136714779).

204123525 is a wasteful number, since it uses less digits than its factorization.

204123525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27061 (or 27056 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 204123525 is about 14287.1804426206. The cubic root of 204123525 is about 588.7953251468.

Adding to 204123525 its reverse (525321402), we get a palindrome (729444927).

The spelling of 204123525 in words is "two hundred four million, one hundred twenty-three thousand, five hundred twenty-five".