256055975 has 12 divisors (see below), whose sum is σ = 362868144. Its totient is φ = 175581120.

The previous prime is 256055971. The next prime is 256055999. The reversal of 256055975 is 579550652.

It is not a de Polignac number, because 256055975 - 2² = 256055971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256055971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731414 + ... + 731763.

It is an arithmetic number, because the mean of its divisors is an integer number (30239012).

Almost surely, 2^256055975 is an apocalyptic number.

256055975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256055975 is a deficient number, since it is larger than the sum of its proper divisors (106812169).

256055975 is a wasteful number, since it uses less digits than its factorization.

256055975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463194 (or 1463189 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 44.

The square root of 256055975 is about 16001.7491231428. The cubic root of 256055975 is about 635.0066959428.

The spelling of 256055975 in words is "two hundred fifty-six million, fifty-five thousand, nine hundred seventy-five".