256855082 has 16 divisors (see below), whose sum is σ = 430084512. Its totient is φ = 114036720.

The previous prime is 256855069. The next prime is 256855097. The reversal of 256855082 is 280558652.

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, 134813 + ... + 136704.

It is an arithmetic number, because the mean of its divisors is an integer number (26880282).

Almost surely, 2^256855082 is an apocalyptic number.

256855082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256855082 is a deficient number, since it is larger than the sum of its proper divisors (173229430).

256855082 is a wasteful number, since it uses less digits than its factorization.

256855082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271573.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 256855082 is about 16026.6990362957. The cubic root of 256855082 is about 635.6665924530. Note that the first 3 decimals are identical.

The spelling of 256855082 in words is "two hundred fifty-six million, eight hundred fifty-five thousand, eighty-two".