256125085 has 8 divisors (see below), whose sum is σ = 307964160. Its totient is φ = 204490704.

The previous prime is 256125059. The next prime is 256125101. The reversal of 256125085 is 580521652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256125085 - 2²¹ = 254027933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256125085.

It is a congruent number.

It is an unprimeable number.

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, 48405 + ... + 53434.

It is an arithmetic number, because the mean of its divisors is an integer number (38495520).

Almost surely, 2^256125085 is an apocalyptic number.

It is an amenable number.

256125085 is a deficient number, since it is larger than the sum of its proper divisors (51839075).

256125085 is a wasteful number, since it uses less digits than its factorization.

256125085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102347.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 256125085 is about 16003.9084288807. The cubic root of 256125085 is about 635.0638206465.

The spelling of 256125085 in words is "two hundred fifty-six million, one hundred twenty-five thousand, eighty-five".