256072067 has 4 divisors (see below), whose sum is σ = 258607536. Its totient is φ = 253536600.

The previous prime is 256072051. The next prime is 256072073. The reversal of 256072067 is 760270652.

It is a happy number.

256072067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256072067 - 2⁴ = 256072051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256072007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267583 + ... + 1267784.

It is an arithmetic number, because the mean of its divisors is an integer number (64651884).

Almost surely, 2^256072067 is an apocalyptic number.

256072067 is a deficient number, since it is larger than the sum of its proper divisors (2535469).

256072067 is a wasteful number, since it uses less digits than its factorization.

256072067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535468.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 256072067 is about 16002.2519352746. The cubic root of 256072067 is about 635.0199981302.

The spelling of 256072067 in words is "two hundred fifty-six million, seventy-two thousand, sixty-seven".