256222206 has 12 divisors (see below), whose sum is σ = 555148152. Its totient is φ = 85407396.

The previous prime is 256222199. The next prime is 256222229. The reversal of 256222206 is 602222652.

256222206 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 256222206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7117266 + ... + 7117301.

It is an arithmetic number, because the mean of its divisors is an integer number (46262346).

Almost surely, 2^256222206 is an apocalyptic number.

256222206 is an abundant number, since it is smaller than the sum of its proper divisors (298925946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256222206 is a wasteful number, since it uses less digits than its factorization.

256222206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14234575 (or 14234572 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 256222206 is about 16006.9424313327. The cubic root of 256222206 is about 635.1440812205.

Adding to 256222206 its reverse (602222652), we get a palindrome (858444858).

The spelling of 256222206 in words is "two hundred fifty-six million, two hundred twenty-two thousand, two hundred six".