455444553 has 4 divisors (see below), whose sum is σ = 607259408. Its totient is φ = 303629700.

The previous prime is 455444513. The next prime is 455444567. The reversal of 455444553 is 355444554.

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 not a de Polignac number, because 455444553 - 2²⁵ = 421890121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455444513) 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, 75907423 + ... + 75907428.

It is an arithmetic number, because the mean of its divisors is an integer number (151814852).

Almost surely, 2^455444553 is an apocalyptic number.

It is an amenable number.

455444553 is a deficient number, since it is larger than the sum of its proper divisors (151814855).

455444553 is a wasteful number, since it uses less digits than its factorization.

455444553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151814854.

The product of its digits is 480000, while the sum is 39.

The square root of 455444553 is about 21341.1469466849. The cubic root of 455444553 is about 769.3875790422.

Subtracting from 455444553 its reverse (355444554), we obtain a palindrome (99999999).

The spelling of 455444553 in words is "four hundred fifty-five million, four hundred forty-four thousand, five hundred fifty-three".