4225549 has 2 divisors, whose sum is σ = 4225550. Its totient is φ = 4225548.

The previous prime is 4225547. The next prime is 4225589. The reversal of 4225549 is 9455224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2975625 + 1249924 = 1725^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 4225549 - 2¹ = 4225547 is a prime.

Together with 4225547, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 4⁷ + 2 + 2¹¹ + 5⁵ + 5⁵ + 4¹¹ + 9⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 4225549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4225541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112774 + 2112775.

It is an arithmetic number, because the mean of its divisors is an integer number (2112775).

Almost surely, 2^4225549 is an apocalyptic number.

It is an amenable number.

4225549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4225549 is an equidigital number, since it uses as much as digits as its factorization.

4225549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 4225549 is about 2055.6140201896. The cubic root of 4225549 is about 161.6693581347.

It can be divided in two parts, 4225 and 549, that added together give a palindrome (4774).

The spelling of 4225549 in words is "four million, two hundred twenty-five thousand, five hundred forty-nine".