256042007 has 8 divisors (see below), whose sum is σ = 282463440. Its totient is φ = 230581440.

The previous prime is 256041997. The next prime is 256042013. The reversal of 256042007 is 700240652.

256042007 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 a cyclic number.

It is not a de Polignac number, because 256042007 - 2²² = 251847703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256042097) 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, 239657 + ... + 240722.

It is an arithmetic number, because the mean of its divisors is an integer number (35307930).

Almost surely, 2^256042007 is an apocalyptic number.

256042007 is a deficient number, since it is larger than the sum of its proper divisors (26421433).

256042007 is a wasteful number, since it uses less digits than its factorization.

256042007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480433.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 256042007 is about 16001.3126649035. The cubic root of 256042007 is about 634.9951490732.

Adding to 256042007 its reverse (700240652), we get a palindrome (956282659).

The spelling of 256042007 in words is "two hundred fifty-six million, forty-two thousand, seven".