256681054 has 16 divisors (see below), whose sum is σ = 454219776. Its totient is φ = 106457400.

The previous prime is 256681043. The next prime is 256681091. The reversal of 256681054 is 450186652.

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, 295282 + ... + 296149.

It is an arithmetic number, because the mean of its divisors is an integer number (28388736).

Almost surely, 2^256681054 is an apocalyptic number.

256681054 is a deficient number, since it is larger than the sum of its proper divisors (197538722).

256681054 is a wasteful number, since it uses less digits than its factorization.

256681054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591471.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 256681054 is about 16021.2688011905. The cubic root of 256681054 is about 635.5229981506.

The spelling of 256681054 in words is "two hundred fifty-six million, six hundred eighty-one thousand, fifty-four".