450620563 has 2 divisors, whose sum is σ = 450620564. Its totient is φ = 450620562.

The previous prime is 450620543. The next prime is 450620579. The reversal of 450620563 is 365026054.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450620563 is a prime.

It is not a weakly prime, because it can be changed into another prime (450620543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225310281 + 225310282.

It is an arithmetic number, because the mean of its divisors is an integer number (225310282).

Almost surely, 2^450620563 is an apocalyptic number.

450620563 is a deficient number, since it is larger than the sum of its proper divisors (1).

450620563 is an equidigital number, since it uses as much as digits as its factorization.

450620563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 450620563 is about 21227.8252065538. The cubic root of 450620563 is about 766.6615248762.

The spelling of 450620563 in words is "four hundred fifty million, six hundred twenty thousand, five hundred sixty-three".