256522322 has 32 divisors (see below), whose sum is σ = 456261120. Its totient is φ = 105880320.

The previous prime is 256522307. The next prime is 256522327. The reversal of 256522322 is 223225652.

It is not an unprimeable number, because it can be changed into a prime (256522327) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 42518 + ... + 48174.

It is an arithmetic number, because the mean of its divisors is an integer number (14258160).

Almost surely, 2^256522322 is an apocalyptic number.

256522322 is a deficient number, since it is larger than the sum of its proper divisors (199738798).

256522322 is a wasteful number, since it uses less digits than its factorization.

256522322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786.

The product of its digits is 14400, while the sum is 29.

The square root of 256522322 is about 16016.3142451689. The cubic root of 256522322 is about 635.3919683032.

Adding to 256522322 its reverse (223225652), we get a palindrome (479747974).

The spelling of 256522322 in words is "two hundred fifty-six million, five hundred twenty-two thousand, three hundred twenty-two".