256087067 has 8 divisors (see below), whose sum is σ = 263424000. Its totient is φ = 248828904.

The previous prime is 256087061. The next prime is 256087079. The reversal of 256087067 is 760780652.

It is a happy number.

256087067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 256087067 - 2⁶ = 256087003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256087061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13067 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (32928000).

Almost surely, 2^256087067 is an apocalyptic number.

256087067 is a deficient number, since it is larger than the sum of its proper divisors (7336933).

256087067 is a wasteful number, since it uses less digits than its factorization.

256087067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39385.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 256087067 is about 16002.7206124459. The cubic root of 256087067 is about 635.0323971319.

The spelling of 256087067 in words is "two hundred fifty-six million, eighty-seven thousand, sixty-seven".