205445255 has 16 divisors (see below), whose sum is σ = 265322304. Its totient is φ = 152148480.

The previous prime is 205445231. The next prime is 205445263. The reversal of 205445255 is 552544502.

It is a de Polignac number, because none of the positive numbers 2^k-205445255 is a prime.

It is a Duffinian number.

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, 14627 + ... + 24996.

It is an arithmetic number, because the mean of its divisors is an integer number (16582644).

Almost surely, 2^205445255 is an apocalyptic number.

205445255 is a deficient number, since it is larger than the sum of its proper divisors (59877049).

205445255 is a wasteful number, since it uses less digits than its factorization.

205445255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39706.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 205445255 is about 14333.3616084992. The cubic root of 205445255 is about 590.0634375914.

Adding to 205445255 its reverse (552544502), we get a palindrome (757989757).

The spelling of 205445255 in words is "two hundred five million, four hundred forty-five thousand, two hundred fifty-five".