204115725 has 36 divisors (see below), whose sum is σ = 398834592. Its totient is φ = 98964000.

The previous prime is 204115649. The next prime is 204115729. The reversal of 204115725 is 527511402.

It is not a de Polignac number, because 204115725 - 2⁹ = 204115213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204115729) 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 35 ways as a sum of consecutive naturals, for example, 38761 + ... + 43710.

Almost surely, 2^204115725 is an apocalyptic number.

204115725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204115725 is a deficient number, since it is larger than the sum of its proper divisors (194718867).

204115725 is a wasteful number, since it uses less digits than its factorization.

204115725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82498 (or 82490 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 204115725 is about 14286.9074680282. The cubic root of 204115725 is about 588.7878253383.

It can be divided in two parts, 2041 and 15725, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 204115725 in words is "two hundred four million, one hundred fifteen thousand, seven hundred twenty-five".