205206054255 has 48 divisors (see below), whose sum is σ = 374459704320. Its totient is φ = 103669585344.

The previous prime is 205206054227. The next prime is 205206054269. The reversal of 205206054255 is 552450602502.

205206054255 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 0 + 60 + 542 + 55 = 666.

It is not a de Polignac number, because 205206054255 - 2⁶ = 205206054191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11796294 + ... + 11813676.

It is an arithmetic number, because the mean of its divisors is an integer number (7801243840).

Almost surely, 2^205206054255 is an apocalyptic number.

205206054255 is a deficient number, since it is larger than the sum of its proper divisors (169253650065).

205206054255 is a wasteful number, since it uses less digits than its factorization.

205206054255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31220 (or 31217 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 205206054255 its reverse (552450602502), we get a palindrome (757656656757).

The spelling of 205206054255 in words is "two hundred five billion, two hundred six million, fifty-four thousand, two hundred fifty-five".