55706243 has 2 divisors, whose sum is σ = 55706244. Its totient is φ = 55706242.

The previous prime is 55706191. The next prime is 55706251. The reversal of 55706243 is 34260755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55706243 - 2⁸ = 55705987 is a prime.

It is not a weakly prime, because it can be changed into another prime (55706143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27853121 + 27853122.

It is an arithmetic number, because the mean of its divisors is an integer number (27853122).

Almost surely, 2^55706243 is an apocalyptic number.

55706243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55706243 is an equidigital number, since it uses as much as digits as its factorization.

55706243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 55706243 is about 7463.6615008989. The cubic root of 55706243 is about 381.9160908690.

Adding to 55706243 its reverse (34260755), we get a palindrome (89966998).

The spelling of 55706243 in words is "fifty-five million, seven hundred six thousand, two hundred forty-three".