256050478 has 4 divisors (see below), whose sum is σ = 384075720. Its totient is φ = 128025238.

The previous prime is 256050463. The next prime is 256050497. The reversal of 256050478 is 874050652.

It is a happy number.

256050478 is digitally balanced in base 3, 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64012618 + ... + 64012621.

It is an arithmetic number, because the mean of its divisors is an integer number (96018930).

Almost surely, 2^256050478 is an apocalyptic number.

256050478 is a deficient number, since it is larger than the sum of its proper divisors (128025242).

256050478 is a wasteful number, since it uses less digits than its factorization.

256050478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128025241.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 256050478 is about 16001.5773597480. The cubic root of 256050478 is about 635.0021518103.

The spelling of 256050478 in words is "two hundred fifty-six million, fifty thousand, four hundred seventy-eight".