4450561 has 2 divisors, whose sum is σ = 4450562. Its totient is φ = 4450560.

The previous prime is 4450553. The next prime is 4450573. The reversal of 4450561 is 1650544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2873025 + 1577536 = 1695^2 + 1256^2 .

It is a cyclic number.

It is not a de Polignac number, because 4450561 - 2³ = 4450553 is a prime.

4450561 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4450261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2225280 + 2225281.

It is an arithmetic number, because the mean of its divisors is an integer number (2225281).

Almost surely, 2^4450561 is an apocalyptic number.

It is an amenable number.

4450561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4450561 is an equidigital number, since it uses as much as digits as its factorization.

4450561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 4450561 is about 2109.6352765348. The cubic root of 4450561 is about 164.4895273310.

It can be divided in two parts, 44 and 50561, that added together give a palindrome (50605).

The spelling of 4450561 in words is "four million, four hundred fifty thousand, five hundred sixty-one".