204560111725 has 12 divisors (see below), whose sum is σ = 253817918676. Its totient is φ = 163542682880.

The previous prime is 204560111689. The next prime is 204560111731. The reversal of 204560111725 is 527111065402.

It can be written as a sum of positive squares in 6 ways, for example, as 5375529124 + 199184582601 = 73318^2 + 446301^2 .

It is not a de Polignac number, because 204560111725 - 2⁹ = 204560111213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2595562 + ... + 2673211.

It is an arithmetic number, because the mean of its divisors is an integer number (21151493223).

Almost surely, 2^204560111725 is an apocalyptic number.

204560111725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204560111725 is a deficient number, since it is larger than the sum of its proper divisors (49257806951).

204560111725 is a wasteful number, since it uses less digits than its factorization.

204560111725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270336 (or 5270331 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 204560111725 in words is "two hundred four billion, five hundred sixty million, one hundred eleven thousand, seven hundred twenty-five".