42545545222 has 32 divisors (see below), whose sum is σ = 67411574784. Its totient is φ = 20098716000.

The previous prime is 42545545187. The next prime is 42545545223. The reversal of 42545545222 is 22254554524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42545545223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1991803 + ... + 2013049.

It is an arithmetic number, because the mean of its divisors is an integer number (2106611712).

Almost surely, 2^42545545222 is an apocalyptic number.

42545545222 is a deficient number, since it is larger than the sum of its proper divisors (24866029562).

42545545222 is a wasteful number, since it uses less digits than its factorization.

42545545222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21804.

The product of its digits is 640000, while the sum is 40.

It can be divided in two parts, 4254554522 and 2, that added together give a palindrome (4254554524).

The spelling of 42545545222 in words is "forty-two billion, five hundred forty-five million, five hundred forty-five thousand, two hundred twenty-two".