256223335 has 16 divisors (see below), whose sum is σ = 329512896. Its totient is φ = 190764288.

The previous prime is 256223333. The next prime is 256223347. The reversal of 256223335 is 533322652.

It is a cyclic number.

It is not a de Polignac number, because 256223335 - 2¹ = 256223333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256223297 and 256223306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256223333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25854 + ... + 34363.

It is an arithmetic number, because the mean of its divisors is an integer number (20594556).

Almost surely, 2^256223335 is an apocalyptic number.

256223335 is a deficient number, since it is larger than the sum of its proper divisors (73289561).

256223335 is a wasteful number, since it uses less digits than its factorization.

256223335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60282.

The product of its digits is 32400, while the sum is 31.

The square root of 256223335 is about 16006.9776972419. The cubic root of 256223335 is about 635.1450141042.

Adding to 256223335 its reverse (533322652), we get a palindrome (789545987).

The spelling of 256223335 in words is "two hundred fifty-six million, two hundred twenty-three thousand, three hundred thirty-five".