205250325530 has 8 divisors (see below), whose sum is σ = 369450585972. Its totient is φ = 82100130208.

The previous prime is 205250325523. The next prime is 205250325569. The reversal of 205250325530 is 35523052502.

It is a happy number.

205250325530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 195264120769 + 9986204761 = 441887^2 + 99931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×205250325530² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10262516267 + ... + 10262516286.

Almost surely, 2^205250325530 is an apocalyptic number.

205250325530 is a deficient number, since it is larger than the sum of its proper divisors (164200260442).

205250325530 is a wasteful number, since it uses less digits than its factorization.

205250325530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20525032560.

The product of its (nonzero) digits is 45000, while the sum is 32.

The spelling of 205250325530 in words is "two hundred five billion, two hundred fifty million, three hundred twenty-five thousand, five hundred thirty".