450543253 has 4 divisors (see below), whose sum is σ = 452877868. Its totient is φ = 448208640.

The previous prime is 450543211. The next prime is 450543259. The reversal of 450543253 is 352345054.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93257649 + 357285604 = 9657^2 + 18902^2 .

It is a cyclic number.

It is not a de Polignac number, because 450543253 - 2¹⁷ = 450412181 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 (450543259) 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, 1167018 + ... + 1167403.

It is an arithmetic number, because the mean of its divisors is an integer number (113219467).

Almost surely, 2^450543253 is an apocalyptic number.

It is an amenable number.

450543253 is a deficient number, since it is larger than the sum of its proper divisors (2334615).

450543253 is a wasteful number, since it uses less digits than its factorization.

450543253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334614.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 450543253 is about 21226.0041694145. The cubic root of 450543253 is about 766.6176786804.

The spelling of 450543253 in words is "four hundred fifty million, five hundred forty-three thousand, two hundred fifty-three".