256087883 has 4 divisors (see below), whose sum is σ = 256387560. Its totient is φ = 255788208.

The previous prime is 256087879. The next prime is 256087933. The reversal of 256087883 is 388780652.

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 256087883 - 2² = 256087879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256087583) 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, 148553 + ... + 150266.

It is an arithmetic number, because the mean of its divisors is an integer number (64096890).

Almost surely, 2^256087883 is an apocalyptic number.

256087883 is a deficient number, since it is larger than the sum of its proper divisors (299677).

256087883 is an equidigital number, since it uses as much as digits as its factorization.

256087883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299676.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 256087883 is about 16002.7461080903. The cubic root of 256087883 is about 635.0330716237.

The spelling of 256087883 in words is "two hundred fifty-six million, eighty-seven thousand, eight hundred eighty-three".