448612561 has 2 divisors, whose sum is σ = 448612562. Its totient is φ = 448612560.

The previous prime is 448612559. The next prime is 448612579. The reversal of 448612561 is 165216844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397404225 + 51208336 = 19935^2 + 7156^2 .

It is a cyclic number.

It is not a de Polignac number, because 448612561 - 2¹ = 448612559 is a prime.

Together with 448612559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 448612561.

It is not a weakly prime, because it can be changed into another prime (448612061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224306280 + 224306281.

It is an arithmetic number, because the mean of its divisors is an integer number (224306281).

Almost surely, 2^448612561 is an apocalyptic number.

It is an amenable number.

448612561 is a deficient number, since it is larger than the sum of its proper divisors (1).

448612561 is an equidigital number, since it uses as much as digits as its factorization.

448612561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 448612561 is about 21180.4759389396. The cubic root of 448612561 is about 765.5210604223.

The spelling of 448612561 in words is "four hundred forty-eight million, six hundred twelve thousand, five hundred sixty-one".