450515663 has 16 divisors (see below), whose sum is σ = 499548000. Its totient is φ = 403595136.

The previous prime is 450515647. The next prime is 450515677. The reversal of 450515663 is 366515054.

It is a cyclic number.

It is not a de Polignac number, because 450515663 - 2⁴ = 450515647 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 (450215663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239081 + ... + 240957.

It is an arithmetic number, because the mean of its divisors is an integer number (31221750).

Almost surely, 2^450515663 is an apocalyptic number.

450515663 is a deficient number, since it is larger than the sum of its proper divisors (49032337).

450515663 is a wasteful number, since it uses less digits than its factorization.

450515663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 450515663 is about 21225.3542491050. The cubic root of 450515663 is about 766.6020298584.

The spelling of 450515663 in words is "four hundred fifty million, five hundred fifteen thousand, six hundred sixty-three".