255238806 has 16 divisors (see below), whose sum is σ = 517471344. Its totient is φ = 83913984.

The previous prime is 255238787. The next prime is 255238847. The reversal of 255238806 is 608832552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290931 + ... + 291806.

It is an arithmetic number, because the mean of its divisors is an integer number (32341959).

Almost surely, 2^255238806 is an apocalyptic number.

255238806 is an abundant number, since it is smaller than the sum of its proper divisors (262232538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255238806 is a wasteful number, since it uses less digits than its factorization.

255238806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582815.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 255238806 is about 15976.1949787801. The cubic root of 255238806 is about 634.3304625838.

The spelling of 255238806 in words is "two hundred fifty-five million, two hundred thirty-eight thousand, eight hundred six".