450912253 has 4 divisors (see below), whose sum is σ = 491904288. Its totient is φ = 409920220.

The previous prime is 450912251. The next prime is 450912281. The reversal of 450912253 is 352219054.

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 not a de Polignac number, because 450912253 - 2¹ = 450912251 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450912251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20496001 + ... + 20496022.

It is an arithmetic number, because the mean of its divisors is an integer number (122976072).

Almost surely, 2^450912253 is an apocalyptic number.

It is an amenable number.

450912253 is a deficient number, since it is larger than the sum of its proper divisors (40992035).

450912253 is a wasteful number, since it uses less digits than its factorization.

450912253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40992034.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 450912253 is about 21234.6945586698. The cubic root of 450912253 is about 766.8269110747.

The spelling of 450912253 in words is "four hundred fifty million, nine hundred twelve thousand, two hundred fifty-three".