205500302450 has 12 divisors (see below), whose sum is σ = 382230562650. Its totient is φ = 82200120960.

The previous prime is 205500302369. The next prime is 205500302453. The reversal of 205500302450 is 54203005502.

It can be written as a sum of positive squares in 3 ways, for example, as 192153352609 + 13346949841 = 438353^2 + 115529^2 .

It is not an unprimeable number, because it can be changed into a prime (205500302453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2055002975 + ... + 2055003074.

Almost surely, 2^205500302450 is an apocalyptic number.

205500302450 is a deficient number, since it is larger than the sum of its proper divisors (176730260200).

205500302450 is a wasteful number, since it uses less digits than its factorization.

205500302450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110006061 (or 4110006056 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

Adding to 205500302450 its reverse (54203005502), we get a palindrome (259703307952).

The spelling of 205500302450 in words is "two hundred five billion, five hundred million, three hundred two thousand, four hundred fifty".