255206786 has 16 divisors (see below), whose sum is σ = 396584640. Its totient is φ = 123024720.

The previous prime is 255206773. The next prime is 255206789. The reversal of 255206786 is 687602552.

It is not an unprimeable number, because it can be changed into a prime (255206789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42851 + ... + 48441.

It is an arithmetic number, because the mean of its divisors is an integer number (24786540).

Almost surely, 2^255206786 is an apocalyptic number.

255206786 is a deficient number, since it is larger than the sum of its proper divisors (141377854).

255206786 is a wasteful number, since it uses less digits than its factorization.

255206786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 255206786 is about 15975.1928313870. The cubic root of 255206786 is about 634.3039356473.

The spelling of 255206786 in words is "two hundred fifty-five million, two hundred six thousand, seven hundred eighty-six".