42225571 has 8 divisors (see below), whose sum is σ = 42872544. Its totient is φ = 41583360.

The previous prime is 42225553. The next prime is 42225593. The reversal of 42225571 is 17552224.

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

It is a cyclic number.

It is not a de Polignac number, because 42225571 - 2¹¹ = 42223523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42225511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19251 + ... + 21331.

It is an arithmetic number, because the mean of its divisors is an integer number (5359068).

Almost surely, 2^42225571 is an apocalyptic number.

42225571 is a deficient number, since it is larger than the sum of its proper divisors (646973).

42225571 is a wasteful number, since it uses less digits than its factorization.

42225571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381.

The product of its digits is 5600, while the sum is 28.

The square root of 42225571 is about 6498.1205744430. The cubic root of 42225571 is about 348.2238480317.

Adding to 42225571 its reverse (17552224), we get a palindrome (59777795).

The spelling of 42225571 in words is "forty-two million, two hundred twenty-five thousand, five hundred seventy-one".