42222255 has 8 divisors (see below), whose sum is σ = 67555632. Its totient is φ = 22518528.

The previous prime is 42222253. The next prime is 42222281. The reversal of 42222255 is 55222224.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42222255 - 2¹ = 42222253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407394 + ... + 1407423.

It is an arithmetic number, because the mean of its divisors is an integer number (8444454).

Almost surely, 2^42222255 is an apocalyptic number.

42222255 is a deficient number, since it is larger than the sum of its proper divisors (25333377).

42222255 is a wasteful number, since it uses less digits than its factorization.

42222255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814825.

The product of its digits is 3200, while the sum is 24.

The square root of 42222255 is about 6497.8654187356. The cubic root of 42222255 is about 348.2147323823.

Adding to 42222255 its reverse (55222224), we get a palindrome (97444479).

The spelling of 42222255 in words is "forty-two million, two hundred twenty-two thousand, two hundred fifty-five".