205253414353 has 4 divisors (see below), whose sum is σ = 221042138548. Its totient is φ = 189464690160.

The previous prime is 205253414341. The next prime is 205253414393. The reversal of 205253414353 is 353414352502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31637025424 + 173616388929 = 177868^2 + 416673^2 .

It is a cyclic number.

It is not a de Polignac number, because 205253414353 - 2²⁹ = 204716543441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205253414393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7894362078 + ... + 7894362103.

It is an arithmetic number, because the mean of its divisors is an integer number (55260534637).

Almost surely, 2^205253414353 is an apocalyptic number.

It is an amenable number.

205253414353 is a deficient number, since it is larger than the sum of its proper divisors (15788724195).

205253414353 is a wasteful number, since it uses less digits than its factorization.

205253414353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15788724194.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 205253414353 its reverse (353414352502), we get a palindrome (558667766855).

The spelling of 205253414353 in words is "two hundred five billion, two hundred fifty-three million, four hundred fourteen thousand, three hundred fifty-three".