448550591 has 4 divisors (see below), whose sum is σ = 449843592. Its totient is φ = 447257592.

The previous prime is 448550579. The next prime is 448550611. The reversal of 448550591 is 195055844.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448550591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448550561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645980 + ... + 646673.

It is an arithmetic number, because the mean of its divisors is an integer number (112460898).

Almost surely, 2^448550591 is an apocalyptic number.

448550591 is a deficient number, since it is larger than the sum of its proper divisors (1293001).

448550591 is a wasteful number, since it uses less digits than its factorization.

448550591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293000.

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 448550591 is about 21179.0129845562. The cubic root of 448550591 is about 765.4858098678.

The spelling of 448550591 in words is "four hundred forty-eight million, five hundred fifty thousand, five hundred ninety-one".