450530053 has 4 divisors (see below), whose sum is σ = 451330848. Its totient is φ = 449729260.

The previous prime is 450530029. The next prime is 450530081. The reversal of 450530053 is 350035054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450530053 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 (450530023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399553 + ... + 400678.

It is an arithmetic number, because the mean of its divisors is an integer number (112832712).

Almost surely, 2^450530053 is an apocalyptic number.

It is an amenable number.

450530053 is a deficient number, since it is larger than the sum of its proper divisors (800795).

450530053 is an equidigital number, since it uses as much as digits as its factorization.

450530053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800794.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 450530053 is about 21225.6932277841. The cubic root of 450530053 is about 766.6101918282.

The spelling of 450530053 in words is "four hundred fifty million, five hundred thirty thousand, fifty-three".