205005053424 has 20 divisors (see below), whose sum is σ = 529596388136. Its totient is φ = 68335017792.

The previous prime is 205005053401. The next prime is 205005053437. The reversal of 205005053424 is 424350500502.

It is a junction number, because it is equal to n+sod(n) for n = 205005053391 and 205005053400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135469259 + ... + 2135469354.

Almost surely, 2^205005053424 is an apocalyptic number.

205005053424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205005053424 is an abundant number, since it is smaller than the sum of its proper divisors (324591334712).

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

205005053424 is a wasteful number, since it uses less digits than its factorization.

205005053424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270938624 (or 4270938618 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 205005053424 its reverse (424350500502), we get a palindrome (629355553926).

The spelling of 205005053424 in words is "two hundred five billion, five million, fifty-three thousand, four hundred twenty-four".