205514055 has 12 divisors (see below), whose sum is σ = 356224440. Its totient is φ = 109607472.

The previous prime is 205514047. The next prime is 205514069. The reversal of 205514055 is 550415502.

205514055 is a `hidden beast` number, since 20 + 551 + 40 + 55 = 666.

It is not a de Polignac number, because 205514055 - 2³ = 205514047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283445 + ... + 2283534.

It is an arithmetic number, because the mean of its divisors is an integer number (29685370).

Almost surely, 2^205514055 is an apocalyptic number.

205514055 is a deficient number, since it is larger than the sum of its proper divisors (150710385).

205514055 is a wasteful number, since it uses less digits than its factorization.

205514055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566990 (or 4566987 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 205514055 is about 14335.7614028694. The cubic root of 205514055 is about 590.1292975268.

Adding to 205514055 its reverse (550415502), we get a palindrome (755929557).

It can be divided in two parts, 2055 and 14055, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 205514055 in words is "two hundred five million, five hundred fourteen thousand, fifty-five".