450020053 has 8 divisors (see below), whose sum is σ = 516222720. Its totient is φ = 384295920.

The previous prime is 450020033. The next prime is 450020083. The reversal of 450020053 is 350020054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450020053 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 450020053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450020033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117613 + ... + 121378.

It is an arithmetic number, because the mean of its divisors is an integer number (64527840).

Almost surely, 2^450020053 is an apocalyptic number.

It is an amenable number.

450020053 is a deficient number, since it is larger than the sum of its proper divisors (66202667).

450020053 is a wasteful number, since it uses less digits than its factorization.

450020053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239267.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 450020053 is about 21213.6760840737. The cubic root of 450020053 is about 766.3208150415.

Subtracting from 450020053 its reverse (350020054), we obtain a palindrome (99999999).

The spelling of 450020053 in words is "four hundred fifty million, twenty thousand, fifty-three".