55255244423 has 4 divisors (see below), whose sum is σ = 55255770480. Its totient is φ = 55254718368.

The previous prime is 55255244399. The next prime is 55255244431. The reversal of 55255244423 is 32444255255.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32444255255 = 5 ⋅6488851051.

It is a cyclic number.

It is not a de Polignac number, because 55255244423 - 2¹⁰ = 55255243399 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 (55255244123) 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, 45515 + ... + 335532.

It is an arithmetic number, because the mean of its divisors is an integer number (13813942620).

Almost surely, 2^55255244423 is an apocalyptic number.

55255244423 is a deficient number, since it is larger than the sum of its proper divisors (526057).

55255244423 is a wasteful number, since it uses less digits than its factorization.

55255244423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526056.

The product of its digits is 960000, while the sum is 41.

Adding to 55255244423 its reverse (32444255255), we get a palindrome (87699499678).

The spelling of 55255244423 in words is "fifty-five billion, two hundred fifty-five million, two hundred forty-four thousand, four hundred twenty-three".