55840441 has 2 divisors, whose sum is σ = 55840442. Its totient is φ = 55840440.

The previous prime is 55840417. The next prime is 55840451. The reversal of 55840441 is 14404855.

55840441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38700841 + 17139600 = 6221^2 + 4140^2 .

It is a cyclic number.

It is not a de Polignac number, because 55840441 - 2⁵ = 55840409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55840451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27920220 + 27920221.

It is an arithmetic number, because the mean of its divisors is an integer number (27920221).

Almost surely, 2^55840441 is an apocalyptic number.

It is an amenable number.

55840441 is a deficient number, since it is larger than the sum of its proper divisors (1).

55840441 is an equidigital number, since it uses as much as digits as its factorization.

55840441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 55840441 is about 7472.6461845855. The cubic root of 55840441 is about 382.2225273450. Note that the first 3 decimals are identical.

The spelling of 55840441 in words is "fifty-five million, eight hundred forty thousand, four hundred forty-one".