451640255 has 8 divisors (see below), whose sum is σ = 591238224. Its totient is φ = 328465600.

The previous prime is 451640243. The next prime is 451640257. The reversal of 451640255 is 552046154.

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

It is not a de Polignac number, because 451640255 - 2⁶ = 451640191 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 (451640257) 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, 4105766 + ... + 4105875.

It is an arithmetic number, because the mean of its divisors is an integer number (73904778).

Almost surely, 2^451640255 is an apocalyptic number.

451640255 is a deficient number, since it is larger than the sum of its proper divisors (139597969).

451640255 is a wasteful number, since it uses less digits than its factorization.

451640255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211657.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 451640255 is about 21251.8294506614. The cubic root of 451640255 is about 767.2393722253.

The spelling of 451640255 in words is "four hundred fifty-one million, six hundred forty thousand, two hundred fifty-five".