256082485 has 12 divisors (see below), whose sum is σ = 313223652. Its totient is φ = 200989568.

The previous prime is 256082429. The next prime is 256082549. The reversal of 256082485 is 584280652.

It can be written as a sum of positive squares in 6 ways, for example, as 12909649 + 243172836 = 3593^2 + 15594^2 .

It is a de Polignac number, because none of the positive numbers 2^k-256082485 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 4929 + ... + 23161.

It is an arithmetic number, because the mean of its divisors is an integer number (26101971).

Almost surely, 2^256082485 is an apocalyptic number.

It is an amenable number.

256082485 is a deficient number, since it is larger than the sum of its proper divisors (57141167).

256082485 is an equidigital number, since it uses as much as digits as its factorization.

256082485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18344 (or 18291 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 256082485 is about 16002.5774486487. The cubic root of 256082485 is about 635.0286097015.

The spelling of 256082485 in words is "two hundred fifty-six million, eighty-two thousand, four hundred eighty-five".