242855533 has 4 divisors (see below), whose sum is σ = 248022720. Its totient is φ = 237688348.

The previous prime is 242855527. The next prime is 242855537. The reversal of 242855533 is 335558242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 335558242 = 2 ⋅167779121.

It is a cyclic number.

It is not a de Polignac number, because 242855533 - 2²⁵ = 209301101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242855492 and 242855501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242855537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2583523 + ... + 2583616.

It is an arithmetic number, because the mean of its divisors is an integer number (62005680).

Almost surely, 2^242855533 is an apocalyptic number.

It is an amenable number.

242855533 is a deficient number, since it is larger than the sum of its proper divisors (5167187).

242855533 is an equidigital number, since it uses as much as digits as its factorization.

242855533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167186.

The product of its digits is 144000, while the sum is 37.

The square root of 242855533 is about 15583.8227980172. The cubic root of 242855533 is about 623.9014584215.

The spelling of 242855533 in words is "two hundred forty-two million, eight hundred fifty-five thousand, five hundred thirty-three".