55228843 has 2 divisors, whose sum is σ = 55228844. Its totient is φ = 55228842.

The previous prime is 55228829. The next prime is 55228889. The reversal of 55228843 is 34882255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55228843 - 2⁹ = 55228331 is a prime.

It is not a weakly prime, because it can be changed into another prime (55298843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27614421 + 27614422.

It is an arithmetic number, because the mean of its divisors is an integer number (27614422).

Almost surely, 2^55228843 is an apocalyptic number.

55228843 is a deficient number, since it is larger than the sum of its proper divisors (1).

55228843 is an equidigital number, since it uses as much as digits as its factorization.

55228843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 37.

The square root of 55228843 is about 7431.6110635582. The cubic root of 55228843 is about 380.8219580874.

It can be divided in two parts, 5522 and 8843, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 55228843 in words is "fifty-five million, two hundred twenty-eight thousand, eight hundred forty-three".