256673675 has 12 divisors (see below), whose sum is σ = 332114160. Its totient is φ = 196410720.

The previous prime is 256673657. The next prime is 256673689. The reversal of 256673675 is 576376652.

It is not a de Polignac number, because 256673675 - 2⁶ = 256673611 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222620 + ... + 223769.

It is an arithmetic number, because the mean of its divisors is an integer number (27676180).

Almost surely, 2^256673675 is an apocalyptic number.

256673675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256673675 is a deficient number, since it is larger than the sum of its proper divisors (75440485).

256673675 is a wasteful number, since it uses less digits than its factorization.

256673675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446422 (or 446417 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 47.

The square root of 256673675 is about 16021.0385119068. The cubic root of 256673675 is about 635.5169081425.

The spelling of 256673675 in words is "two hundred fifty-six million, six hundred seventy-three thousand, six hundred seventy-five".