226821055 has 32 divisors (see below), whose sum is σ = 302859648. Its totient is φ = 162201600.

The previous prime is 226821037. The next prime is 226821059. The reversal of 226821055 is 550128622.

It is not a de Polignac number, because 226821055 - 2¹¹ = 226819007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226821059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353535 + ... + 354175.

It is an arithmetic number, because the mean of its divisors is an integer number (9464364).

Almost surely, 2^226821055 is an apocalyptic number.

226821055 is a deficient number, since it is larger than the sum of its proper divisors (76038593).

226821055 is a wasteful number, since it uses less digits than its factorization.

226821055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 226821055 is about 15060.5795041227. The cubic root of 226821055 is about 609.8566849558.

Adding to 226821055 its reverse (550128622), we get a palindrome (776949677).

The spelling of 226821055 in words is "two hundred twenty-six million, eight hundred twenty-one thousand, fifty-five".