55750043 has 2 divisors, whose sum is σ = 55750044. Its totient is φ = 55750042.

The previous prime is 55750039. The next prime is 55750067. The reversal of 55750043 is 34005755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55750043 - 2² = 55750039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55749988 and 55750015.

It is not a weakly prime, because it can be changed into another prime (55750033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27875021 + 27875022.

It is an arithmetic number, because the mean of its divisors is an integer number (27875022).

Almost surely, 2^55750043 is an apocalyptic number.

55750043 is a deficient number, since it is larger than the sum of its proper divisors (1).

55750043 is an equidigital number, since it uses as much as digits as its factorization.

55750043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 55750043 is about 7466.5951410265. The cubic root of 55750043 is about 382.0161606971.

Adding to 55750043 its reverse (34005755), we get a palindrome (89755798).

The spelling of 55750043 in words is "fifty-five million, seven hundred fifty thousand, forty-three".