242202555 has 80 divisors (see below), whose sum is σ = 509826240. Its totient is φ = 107682048.

The previous prime is 242202551. The next prime is 242202599. The reversal of 242202555 is 555202242.

It is not a de Polignac number, because 242202555 - 2² = 242202551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (242202551) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 103741 + ... + 106049.

It is an arithmetic number, because the mean of its divisors is an integer number (6372828).

Almost surely, 2^242202555 is an apocalyptic number.

242202555 is an abundant number, since it is smaller than the sum of its proper divisors (267623685).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242202555 is a wasteful number, since it uses less digits than its factorization.

242202555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 242202555 is about 15562.8581886490. The cubic root of 242202555 is about 623.3417846726.

Adding to 242202555 its reverse (555202242), we get a palindrome (797404797).

The spelling of 242202555 in words is "two hundred forty-two million, two hundred two thousand, five hundred fifty-five".