272281205825 has 12 divisors (see below), whose sum is σ = 343163593788. Its totient is φ = 214254062400.

The previous prime is 272281205803. The next prime is 272281205837. The reversal of 272281205825 is 528502182272.

It can be written as a sum of positive squares in 6 ways, for example, as 6016949761 + 266264256064 = 77569^2 + 516008^2 .

It is a de Polignac number, because none of the positive numbers 2^k-272281205825 is a prime.

It is a Duffinian number.

It is a Curzon 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, 89271002 + ... + 89274051.

It is an arithmetic number, because the mean of its divisors is an integer number (28596966149).

Almost surely, 2^272281205825 is an apocalyptic number.

272281205825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

272281205825 is a deficient number, since it is larger than the sum of its proper divisors (70882387963).

272281205825 is a wasteful number, since it uses less digits than its factorization.

272281205825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178545124 (or 178545119 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 272281205825 in words is "two hundred seventy-two billion, two hundred eighty-one million, two hundred five thousand, eight hundred twenty-five".