205423403727225 has 24 divisors (see below), whose sum is σ = 339634205537472. Its totient is φ = 109558876168000.

The previous prime is 205423403727197. The next prime is 205423403727299. The reversal of 205423403727225 is 522727304324502.

It is not a de Polignac number, because 205423403727225 - 2¹⁴ = 205423403710841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28991044 + ... + 35374106.

It is an arithmetic number, because the mean of its divisors is an integer number (14151425230728).

Almost surely, 2^{205423403727225} is an apocalyptic number.

205423403727225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205423403727225 is a deficient number, since it is larger than the sum of its proper divisors (134210801810247).

205423403727225 is a wasteful number, since it uses less digits than its factorization.

205423403727225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812177 (or 6812172 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 48.

The spelling of 205423403727225 in words is "two hundred five trillion, four hundred twenty-three billion, four hundred three million, seven hundred twenty-seven thousand, two hundred twenty-five".