205054501425211 has 4 divisors (see below), whose sum is σ = 205054559454424. Its totient is φ = 205054443396000.

The previous prime is 205054501425181. The next prime is 205054501425223. The reversal of 205054501425211 is 112524105450502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205054501425211 - 2²¹ = 205054499328059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205054501425311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23344830 + ... + 30904531.

It is an arithmetic number, because the mean of its divisors is an integer number (51263639863606).

Almost surely, 2^{205054501425211} is an apocalyptic number.

205054501425211 is a deficient number, since it is larger than the sum of its proper divisors (58029213).

205054501425211 is an equidigital number, since it uses as much as digits as its factorization.

205054501425211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58029212.

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 205054501425211 its reverse (112524105450502), we get a palindrome (317578606875713).

The spelling of 205054501425211 in words is "two hundred five trillion, fifty-four billion, five hundred one million, four hundred twenty-five thousand, two hundred eleven".