55406243 has 2 divisors, whose sum is σ = 55406244. Its totient is φ = 55406242.

The previous prime is 55406237. The next prime is 55406249. The reversal of 55406243 is 34260455.

It is a balanced prime because it is at equal distance from previous prime (55406237) and next prime (55406249).

It is a cyclic number.

It is not a de Polignac number, because 55406243 - 2⁴ = 55406227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55406249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27703121 + 27703122.

It is an arithmetic number, because the mean of its divisors is an integer number (27703122).

Almost surely, 2^55406243 is an apocalyptic number.

55406243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55406243 is an equidigital number, since it uses as much as digits as its factorization.

55406243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 55406243 is about 7443.5369952731. The cubic root of 55406243 is about 381.2292670621.

Adding to 55406243 its reverse (34260455), we get a palindrome (89666698).

The spelling of 55406243 in words is "fifty-five million, four hundred six thousand, two hundred forty-three".