242550859 has 2 divisors, whose sum is σ = 242550860. Its totient is φ = 242550858.

The previous prime is 242550797. The next prime is 242550863. The reversal of 242550859 is 958055242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242550859 - 2²⁵ = 208996427 is a prime.

It is not a weakly prime, because it can be changed into another prime (242550359) 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, 121275429 + 121275430.

It is an arithmetic number, because the mean of its divisors is an integer number (121275430).

Almost surely, 2^242550859 is an apocalyptic number.

242550859 is a deficient number, since it is larger than the sum of its proper divisors (1).

242550859 is an equidigital number, since it uses as much as digits as its factorization.

242550859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 242550859 is about 15574.0444008613. The cubic root of 242550859 is about 623.6404443981.

The spelling of 242550859 in words is "two hundred forty-two million, five hundred fifty thousand, eight hundred fifty-nine".