448575521 has 2 divisors, whose sum is σ = 448575522. Its totient is φ = 448575520.

The previous prime is 448575499. The next prime is 448575529. The reversal of 448575521 is 125575844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447745600 + 829921 = 21160^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 448575521 - 2¹⁸ = 448313377 is a prime.

It is not a weakly prime, because it can be changed into another prime (448575529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224287760 + 224287761.

It is an arithmetic number, because the mean of its divisors is an integer number (224287761).

Almost surely, 2^448575521 is an apocalyptic number.

It is an amenable number.

448575521 is a deficient number, since it is larger than the sum of its proper divisors (1).

448575521 is an equidigital number, since it uses as much as digits as its factorization.

448575521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224000, while the sum is 41.

The square root of 448575521 is about 21179.6015307182. The cubic root of 448575521 is about 765.4999912541.

The spelling of 448575521 in words is "four hundred forty-eight million, five hundred seventy-five thousand, five hundred twenty-one".