42224255 has 4 divisors (see below), whose sum is σ = 50669112. Its totient is φ = 33779400.

The previous prime is 42224249. The next prime is 42224257. The reversal of 42224255 is 55242224.

42224255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42224255 - 2¹⁰ = 42223231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4222421 + ... + 4222430.

It is an arithmetic number, because the mean of its divisors is an integer number (12667278).

Almost surely, 2^42224255 is an apocalyptic number.

42224255 is a deficient number, since it is larger than the sum of its proper divisors (8444857).

42224255 is an equidigital number, since it uses as much as digits as its factorization.

42224255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8444856.

The product of its digits is 6400, while the sum is 26.

The square root of 42224255 is about 6498.0193136063. The cubic root of 42224255 is about 348.2202304185.

Adding to 42224255 its reverse (55242224), we get a palindrome (97466479).

It can be divided in two parts, 42224 and 255, that multiplied together give a triangular number (10767120 = T₄₆₄₀).

The spelling of 42224255 in words is "forty-two million, two hundred twenty-four thousand, two hundred fifty-five".