55045043 has 2 divisors, whose sum is σ = 55045044. Its totient is φ = 55045042.

The previous prime is 55045013. The next prime is 55045079. The reversal of 55045043 is 34054055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55045043 - 2¹⁸ = 54782899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55045013) 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 as a sum of consecutive naturals, namely, 27522521 + 27522522.

It is an arithmetic number, because the mean of its divisors is an integer number (27522522).

Almost surely, 2^55045043 is an apocalyptic number.

55045043 is a deficient number, since it is larger than the sum of its proper divisors (1).

55045043 is an equidigital number, since it uses as much as digits as its factorization.

55045043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 55045043 is about 7419.2346640338. The cubic root of 55045043 is about 380.3990337411.

Adding to 55045043 its reverse (34054055), we get a palindrome (89099098).

The spelling of 55045043 in words is "fifty-five million, forty-five thousand, forty-three".