450644573 has 2 divisors, whose sum is σ = 450644574. Its totient is φ = 450644572.

The previous prime is 450644563. The next prime is 450644581. The reversal of 450644573 is 375446054.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371024644 + 79619929 = 19262^2 + 8923^2 .

It is a cyclic number.

It is not a de Polignac number, because 450644573 - 2¹⁰ = 450643549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450644503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225322286 + 225322287.

It is an arithmetic number, because the mean of its divisors is an integer number (225322287).

Almost surely, 2^450644573 is an apocalyptic number.

It is an amenable number.

450644573 is a deficient number, since it is larger than the sum of its proper divisors (1).

450644573 is an equidigital number, since it uses as much as digits as its factorization.

450644573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 450644573 is about 21228.3907303403. The cubic root of 450644573 is about 766.6751410741.

The spelling of 450644573 in words is "four hundred fifty million, six hundred forty-four thousand, five hundred seventy-three".