205655485054 has 16 divisors (see below), whose sum is σ = 309097179216. Its totient is φ = 102623241600.

The previous prime is 205655485051. The next prime is 205655485073. The reversal of 205655485054 is 450584556502.

It is a junction number, because it is equal to n+sod(n) for n = 205655484989 and 205655485007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205655485051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2820849 + ... + 2892835.

It is an arithmetic number, because the mean of its divisors is an integer number (19318573701).

Almost surely, 2^205655485054 is an apocalyptic number.

205655485054 is a deficient number, since it is larger than the sum of its proper divisors (103441694162).

205655485054 is a wasteful number, since it uses less digits than its factorization.

205655485054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74811.

The product of its (nonzero) digits is 4800000, while the sum is 49.

The spelling of 205655485054 in words is "two hundred five billion, six hundred fifty-five million, four hundred eighty-five thousand, fifty-four".