55286243 has 2 divisors, whose sum is σ = 55286244. Its totient is φ = 55286242.

The previous prime is 55286233. The next prime is 55286249. The reversal of 55286243 is 34268255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55286243 - 2⁸ = 55285987 is a prime.

It is not a weakly prime, because it can be changed into another prime (55286249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27643121 + 27643122.

It is an arithmetic number, because the mean of its divisors is an integer number (27643122).

Almost surely, 2^55286243 is an apocalyptic number.

55286243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55286243 is an equidigital number, since it uses as much as digits as its factorization.

55286243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

The square root of 55286243 is about 7435.4719419819. The cubic root of 55286243 is about 380.9538433533.

The spelling of 55286243 in words is "fifty-five million, two hundred eighty-six thousand, two hundred forty-three".