205510050424 has 32 divisors (see below), whose sum is σ = 444654213120. Its totient is φ = 87220629216.

The previous prime is 205510050407. The next prime is 205510050467. The reversal of 205510050424 is 424050015502.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 205510050392 and 205510050401.

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, 17808904 + ... + 17820439.

It is an arithmetic number, because the mean of its divisors is an integer number (13895444160).

Almost surely, 2^205510050424 is an apocalyptic number.

It is an amenable number.

205510050424 is an abundant number, since it is smaller than the sum of its proper divisors (239144162696).

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

205510050424 is a wasteful number, since it uses less digits than its factorization.

205510050424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35629459 (or 35629455 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 205510050424 its reverse (424050015502), we get a palindrome (629560065926).

The spelling of 205510050424 in words is "two hundred five billion, five hundred ten million, fifty thousand, four hundred twenty-four".