205251130452 has 24 divisors (see below), whose sum is σ = 495433764000. Its totient is φ = 66057834976.

The previous prime is 205251130379. The next prime is 205251130471. The reversal of 205251130452 is 254031152502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294900702 + ... + 294901397.

It is an arithmetic number, because the mean of its divisors is an integer number (20643073500).

Almost surely, 2^205251130452 is an apocalyptic number.

It is an amenable number.

205251130452 is an abundant number, since it is smaller than the sum of its proper divisors (290182633548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205251130452 is a wasteful number, since it uses less digits than its factorization.

205251130452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589802135 (or 589802133 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 205251130452 its reverse (254031152502), we get a palindrome (459282282954).

The spelling of 205251130452 in words is "two hundred five billion, two hundred fifty-one million, one hundred thirty thousand, four hundred fifty-two".