55244423 has 4 divisors (see below), whose sum is σ = 59494008. Its totient is φ = 50994840.

The previous prime is 55244417. The next prime is 55244437. The reversal of 55244423 is 32444255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32444255 = 5 ⋅6488851.

It is not a de Polignac number, because 55244423 - 2²⁴ = 38467207 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 (55244023) 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, 2124773 + ... + 2124798.

It is an arithmetic number, because the mean of its divisors is an integer number (14873502).

Almost surely, 2^55244423 is an apocalyptic number.

55244423 is a deficient number, since it is larger than the sum of its proper divisors (4249585).

55244423 is a wasteful number, since it uses less digits than its factorization.

55244423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249584.

The product of its digits is 19200, while the sum is 29.

The square root of 55244423 is about 7432.6592145746. The cubic root of 55244423 is about 380.8577645486.

Adding to 55244423 its reverse (32444255), we get a palindrome (87688678).

The spelling of 55244423 in words is "fifty-five million, two hundred forty-four thousand, four hundred twenty-three".