242552855 has 16 divisors (see below), whose sum is σ = 310625280. Its totient is φ = 181181952.

The previous prime is 242552837. The next prime is 242552861. The reversal of 242552855 is 558255242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242552855 - 2¹⁰ = 242551831 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 440 + ... + 22029.

It is an arithmetic number, because the mean of its divisors is an integer number (19414080).

Almost surely, 2^242552855 is an apocalyptic number.

242552855 is a deficient number, since it is larger than the sum of its proper divisors (68072425).

242552855 is a wasteful number, since it uses less digits than its factorization.

242552855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22618.

The product of its digits is 160000, while the sum is 38.

The square root of 242552855 is about 15574.1084817077. The cubic root of 242552855 is about 623.6421550811.

The spelling of 242552855 in words is "two hundred forty-two million, five hundred fifty-two thousand, eight hundred fifty-five".