450020255 has 4 divisors (see below), whose sum is σ = 540024312. Its totient is φ = 360016200.

The previous prime is 450020251. The next prime is 450020267. The reversal of 450020255 is 552020054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 450020255 - 2² = 450020251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450020255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450020251) 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 3 ways as a sum of consecutive naturals, for example, 45002021 + ... + 45002030.

It is an arithmetic number, because the mean of its divisors is an integer number (135006078).

Almost surely, 2^450020255 is an apocalyptic number.

450020255 is a deficient number, since it is larger than the sum of its proper divisors (90004057).

450020255 is an equidigital number, since it uses as much as digits as its factorization.

450020255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90004056.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 450020255 is about 21213.6808451527. The cubic root of 450020255 is about 766.3209297007.

The spelling of 450020255 in words is "four hundred fifty million, twenty thousand, two hundred fifty-five".