2228533 has 2 divisors, whose sum is σ = 2228534. Its totient is φ = 2228532.

The previous prime is 2228531. The next prime is 2228543. The reversal of 2228533 is 3358222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1912689 + 315844 = 1383^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228533 - 2¹ = 2228531 is a prime.

Together with 2228531, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2² + 2¹³ + 2¹⁴ + 8² + 5⁷ + 3¹² + 3¹³ .

It is a junction number, because it is equal to n+sod(n) for n = 2228498 and 2228507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2228531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114266 + 1114267.

It is an arithmetic number, because the mean of its divisors is an integer number (1114267).

2^2228533 is an apocalyptic number.

It is an amenable number.

2228533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228533 is an equidigital number, since it uses as much as digits as its factorization.

2228533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 2228533 is about 1492.8271835681. The cubic root of 2228533 is about 130.6190005868.

It can be divided in two parts, 22 and 28533, that multiplied together give a palindrome (627726).

The spelling of 2228533 in words is "two million, two hundred twenty-eight thousand, five hundred thirty-three".