55144411 has 4 divisors (see below), whose sum is σ = 63022192. Its totient is φ = 47266632.

The previous prime is 55144391. The next prime is 55144421. The reversal of 55144411 is 11444155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11444155 = 5 ⋅2288831.

It is not a de Polignac number, because 55144411 - 2⁹ = 55143899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55144421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3938880 + ... + 3938893.

It is an arithmetic number, because the mean of its divisors is an integer number (15755548).

Almost surely, 2^55144411 is an apocalyptic number.

55144411 is a deficient number, since it is larger than the sum of its proper divisors (7877781).

55144411 is an equidigital number, since it uses as much as digits as its factorization.

55144411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7877780.

The product of its digits is 1600, while the sum is 25.

The square root of 55144411 is about 7425.9282921396. The cubic root of 55144411 is about 380.6277965054.

Adding to 55144411 its reverse (11444155), we get a palindrome (66588566).

It can be divided in two parts, 55144 and 411, that added together give a palindrome (55555).

The spelling of 55144411 in words is "fifty-five million, one hundred forty-four thousand, four hundred eleven".