242555333 has 6 divisors (see below), whose sum is σ = 251208594. Its totient is φ = 234190544.

The previous prime is 242555279. The next prime is 242555351. The reversal of 242555333 is 333555242.

It can be written as a sum of positive squares in 3 ways, for example, as 72982849 + 169572484 = 8543^2 + 13022^2 .

It is not a de Polignac number, because 242555333 - 2¹² = 242551237 is a prime.

It is a super-3 number, since 3×242555333³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 242555333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242555353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143366 + ... + 145047.

It is an arithmetic number, because the mean of its divisors is an integer number (41868099).

Almost surely, 2^242555333 is an apocalyptic number.

It is an amenable number.

242555333 is a deficient number, since it is larger than the sum of its proper divisors (8653261).

242555333 is an equidigital number, since it uses as much as digits as its factorization.

242555333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288471 (or 288442 counting only the distinct ones).

The product of its digits is 54000, while the sum is 32.

The square root of 242555333 is about 15574.1880366201. The cubic root of 242555333 is about 623.6442788519.

Subtracting 242555333 from its reverse (333555242), we obtain a palindrome (90999909).

The spelling of 242555333 in words is "two hundred forty-two million, five hundred fifty-five thousand, three hundred thirty-three".