254544445453 has 4 divisors (see below), whose sum is σ = 254656631260. Its totient is φ = 254432259648.

The previous prime is 254544445427. The next prime is 254544445471. The reversal of 254544445453 is 354544445452.

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 7403225764 + 247141219689 = 86042^2 + 497133^2 .

It is a cyclic number.

It is not a de Polignac number, because 254544445453 - 2¹³ = 254544437261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254544445397 and 254544445406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254544445553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56089500 + ... + 56094037.

It is an arithmetic number, because the mean of its divisors is an integer number (63664157815).

Almost surely, 2^254544445453 is an apocalyptic number.

It is an amenable number.

254544445453 is a deficient number, since it is larger than the sum of its proper divisors (112185807).

254544445453 is a wasteful number, since it uses less digits than its factorization.

254544445453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112185806.

The product of its digits is 15360000, while the sum is 49.

Subtracting 254544445453 from its reverse (354544445452), we obtain a palindrome (99999999999).

The spelling of 254544445453 in words is "two hundred fifty-four billion, five hundred forty-four million, four hundred forty-five thousand, four hundred fifty-three".