204107517255 has 32 divisors (see below), whose sum is σ = 333681419520. Its totient is φ = 106505038080.

The previous prime is 204107517239. The next prime is 204107517259. The reversal of 204107517255 is 552715701402.

204107517255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204107517255 - 2⁴ = 204107517239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204107517259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359782 + ... + 733251.

It is an arithmetic number, because the mean of its divisors is an integer number (10427544360).

Almost surely, 2^204107517255 is an apocalyptic number.

204107517255 is a deficient number, since it is larger than the sum of its proper divisors (129573902265).

204107517255 is a wasteful number, since it uses less digits than its factorization.

204107517255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093311.

The product of its (nonzero) digits is 98000, while the sum is 39.

The spelling of 204107517255 in words is "two hundred four billion, one hundred seven million, five hundred seventeen thousand, two hundred fifty-five".