226557 has 10 divisors (see below), whose sum is σ = 338558. Its totient is φ = 150984.

The previous prime is 226553. The next prime is 226571. The reversal of 226557 is 755622.

226557 is a `hidden beast` number, since 2 + 2 + 655 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 210681 + 15876 = 459^2 + 126^2 .

It is not a de Polignac number, because 226557 - 2² = 226553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 5 + 6² + 5⁷ + 7⁵ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226553) 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 9 ways as a sum of consecutive naturals, for example, 1318 + ... + 1479.

2²²⁶⁵⁵⁷ is an apocalyptic number.

226557 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

226557 is a deficient number, since it is larger than the sum of its proper divisors (112001).

226557 is an equidigital number, since it uses as much as digits as its factorization.

226557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2800 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 226557 is about 475.9800415984. The cubic root of 226557 is about 60.9619937038.

The spelling of 226557 in words is "two hundred twenty-six thousand, five hundred fifty-seven".