255505445 has 16 divisors (see below), whose sum is σ = 347571840. Its totient is φ = 178749504.

The previous prime is 255505433. The next prime is 255505451. The reversal of 255505445 is 544505552.

It is a cyclic number.

It is not a de Polignac number, because 255505445 - 2⁴ = 255505429 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, 102209 + ... + 104678.

It is an arithmetic number, because the mean of its divisors is an integer number (21723240).

Almost surely, 2^255505445 is an apocalyptic number.

It is an amenable number.

255505445 is a deficient number, since it is larger than the sum of its proper divisors (92066395).

255505445 is a wasteful number, since it uses less digits than its factorization.

255505445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206924.

The product of its (nonzero) digits is 100000, while the sum is 35.

The square root of 255505445 is about 15984.5376849004. The cubic root of 255505445 is about 634.5512732823.

The spelling of 255505445 in words is "two hundred fifty-five million, five hundred five thousand, four hundred forty-five".