16550243 has 2 divisors, whose sum is σ = 16550244. Its totient is φ = 16550242.

The previous prime is 16550239. The next prime is 16550279. The reversal of 16550243 is 34205561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16550243 - 2² = 16550239 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16750243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275121 + 8275122.

It is an arithmetic number, because the mean of its divisors is an integer number (8275122).

Almost surely, 2^16550243 is an apocalyptic number.

16550243 is a deficient number, since it is larger than the sum of its proper divisors (1).

16550243 is an equidigital number, since it uses as much as digits as its factorization.

16550243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 16550243 is about 4068.1989872670. The cubic root of 16550243 is about 254.8403101162.

The spelling of 16550243 in words is "sixteen million, five hundred fifty thousand, two hundred forty-three".