450053521 has 2 divisors, whose sum is σ = 450053522. Its totient is φ = 450053520.

The previous prime is 450053503. The next prime is 450053579. The reversal of 450053521 is 125350054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345216400 + 104837121 = 18580^2 + 10239^2 .

It is a cyclic number.

It is not a de Polignac number, because 450053521 - 2¹³ = 450045329 is a prime.

It is not a weakly prime, because it can be changed into another prime (450053501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225026760 + 225026761.

It is an arithmetic number, because the mean of its divisors is an integer number (225026761).

Almost surely, 2^450053521 is an apocalyptic number.

It is an amenable number.

450053521 is a deficient number, since it is larger than the sum of its proper divisors (1).

450053521 is an equidigital number, since it uses as much as digits as its factorization.

450053521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 450053521 is about 21214.4649001572. The cubic root of 450053521 is about 766.3398116685.

The spelling of 450053521 in words is "four hundred fifty million, fifty-three thousand, five hundred twenty-one".