54440350253 has 4 divisors (see below), whose sum is σ = 56317603740. Its totient is φ = 52563096768.

The previous prime is 54440350241. The next prime is 54440350291. The reversal of 54440350253 is 35205304445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35205304445 = 5 ⋅7041060889.

It can be written as a sum of positive squares in 2 ways, for example, as 13108647049 + 41331703204 = 114493^2 + 203302^2 .

It is a cyclic number.

It is not a de Polignac number, because 54440350253 - 2⁶ = 54440350189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54440350453) 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, 938626700 + ... + 938626757.

It is an arithmetic number, because the mean of its divisors is an integer number (14079400935).

Almost surely, 2^54440350253 is an apocalyptic number.

It is an amenable number.

54440350253 is a deficient number, since it is larger than the sum of its proper divisors (1877253487).

54440350253 is a wasteful number, since it uses less digits than its factorization.

54440350253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877253486.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 54440350253 its reverse (35205304445), we get a palindrome (89645654698).

The spelling of 54440350253 in words is "fifty-four billion, four hundred forty million, three hundred fifty thousand, two hundred fifty-three".