448810561 has 4 divisors (see below), whose sum is σ = 453437572. Its totient is φ = 444183552.

The previous prime is 448810547. The next prime is 448810597. The reversal of 448810561 is 165018844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 293060161 + 155750400 = 17119^2 + 12480^2 .

It is a cyclic number.

It is not a de Polignac number, because 448810561 - 2⁷ = 448810433 is a prime.

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 448810561.

It is not an unprimeable number, because it can be changed into a prime (448810501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313360 + ... + 2313553.

It is an arithmetic number, because the mean of its divisors is an integer number (113359393).

Almost surely, 2^448810561 is an apocalyptic number.

It is an amenable number.

448810561 is a deficient number, since it is larger than the sum of its proper divisors (4627011).

448810561 is an equidigital number, since it uses as much as digits as its factorization.

448810561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627010.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 448810561 is about 21185.1495392409. The cubic root of 448810561 is about 765.6336675204.

The spelling of 448810561 in words is "four hundred forty-eight million, eight hundred ten thousand, five hundred sixty-one".