451251253 has 4 divisors (see below), whose sum is σ = 451336108. Its totient is φ = 451166400.

The previous prime is 451251209. The next prime is 451251263. The reversal of 451251253 is 352152154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352152154 = 2 ⋅176076077.

It can be written as a sum of positive squares in 2 ways, for example, as 367949124 + 83302129 = 19182^2 + 9127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451251253 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 (451251263) 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, 33876 + ... + 45277.

It is an arithmetic number, because the mean of its divisors is an integer number (112834027).

Almost surely, 2^451251253 is an apocalyptic number.

It is an amenable number.

451251253 is a deficient number, since it is larger than the sum of its proper divisors (84855).

451251253 is an equidigital number, since it uses as much as digits as its factorization.

451251253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84854.

The product of its digits is 6000, while the sum is 28.

The square root of 451251253 is about 21242.6752787873. The cubic root of 451251253 is about 767.0190321234.

Subtracting from 451251253 its reverse (352152154), we obtain a palindrome (99099099).

The spelling of 451251253 in words is "four hundred fifty-one million, two hundred fifty-one thousand, two hundred fifty-three".