205097655 has 16 divisors (see below), whose sum is σ = 375035904. Its totient is φ = 93758880.

The previous prime is 205097593. The next prime is 205097671. The reversal of 205097655 is 556790502.

It is not a de Polignac number, because 205097655 - 2¹¹ = 205095607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976551 + ... + 976760.

It is an arithmetic number, because the mean of its divisors is an integer number (23439744).

Almost surely, 2^205097655 is an apocalyptic number.

205097655 is a deficient number, since it is larger than the sum of its proper divisors (169938249).

205097655 is a wasteful number, since it uses less digits than its factorization.

205097655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953326.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 205097655 is about 14321.2309177668. The cubic root of 205097655 is about 589.7304667551.

The spelling of 205097655 in words is "two hundred five million, ninety-seven thousand, six hundred fifty-five".