55144841 has 2 divisors, whose sum is σ = 55144842. Its totient is φ = 55144840.

The previous prime is 55144813. The next prime is 55144847. The reversal of 55144841 is 14844155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 7590025 = 6896^2 + 2755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55144841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55144798 and 55144807.

It is not a weakly prime, because it can be changed into another prime (55144847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572420 + 27572421.

It is an arithmetic number, because the mean of its divisors is an integer number (27572421).

Almost surely, 2^55144841 is an apocalyptic number.

It is an amenable number.

55144841 is a deficient number, since it is larger than the sum of its proper divisors (1).

55144841 is an equidigital number, since it uses as much as digits as its factorization.

55144841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12800, while the sum is 32.

The square root of 55144841 is about 7425.9572446924. The cubic root of 55144841 is about 380.6287858442.

Adding to 55144841 its reverse (14844155), we get a palindrome (69988996).

The spelling of 55144841 in words is "fifty-five million, one hundred forty-four thousand, eight hundred forty-one".