256747011 has 8 divisors (see below), whose sum is σ = 342532944. Its totient is φ = 171062880.

The previous prime is 256746911. The next prime is 256747021. The reversal of 256747011 is 110747652.

256747011 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 256747011 - 2¹¹ = 256744963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256747021) 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, 19356 + ... + 29801.

It is an arithmetic number, because the mean of its divisors is an integer number (42816618).

Almost surely, 2^256747011 is an apocalyptic number.

256747011 is a deficient number, since it is larger than the sum of its proper divisors (85785933).

256747011 is a wasteful number, since it uses less digits than its factorization.

256747011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50901.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 256747011 is about 16023.3270889663. The cubic root of 256747011 is about 635.5774283470.

The spelling of 256747011 in words is "two hundred fifty-six million, seven hundred forty-seven thousand, eleven".