256223432054 has 8 divisors (see below), whose sum is σ = 384346603368. Its totient is φ = 128107897600.

The previous prime is 256223432033. The next prime is 256223432077. The reversal of 256223432054 is 450234322652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 256223431999 and 256223432017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1824587 + ... + 1959990.

It is an arithmetic number, because the mean of its divisors is an integer number (48043325421).

Almost surely, 2^256223432054 is an apocalyptic number.

256223432054 is a deficient number, since it is larger than the sum of its proper divisors (128123171314).

256223432054 is a wasteful number, since it uses less digits than its factorization.

256223432054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818430.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 256223432054 in words is "two hundred fifty-six billion, two hundred twenty-three million, four hundred thirty-two thousand, fifty-four".