256063485 has 16 divisors (see below), whose sum is σ = 427515264. Its totient is φ = 130629312.

The previous prime is 256063477. The next prime is 256063501. The reversal of 256063485 is 584360652.

It is not a de Polignac number, because 256063485 - 2³ = 256063477 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370762 + ... + 371451.

It is an arithmetic number, because the mean of its divisors is an integer number (26719704).

Almost surely, 2^256063485 is an apocalyptic number.

It is an amenable number.

256063485 is a deficient number, since it is larger than the sum of its proper divisors (171451779).

256063485 is a wasteful number, since it uses less digits than its factorization.

256063485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742244.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 256063485 is about 16001.9837832689. The cubic root of 256063485 is about 635.0129040302.

The spelling of 256063485 in words is "two hundred fifty-six million, sixty-three thousand, four hundred eighty-five".