42022505 has 8 divisors (see below), whose sum is σ = 57630912. Its totient is φ = 28815408.

The previous prime is 42022501. The next prime is 42022511. The reversal of 42022505 is 50522024.

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 42022505 - 2² = 42022501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42022501) 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, 600287 + ... + 600356.

It is an arithmetic number, because the mean of its divisors is an integer number (7203864).

Almost surely, 2^42022505 is an apocalyptic number.

It is an amenable number.

42022505 is a deficient number, since it is larger than the sum of its proper divisors (15608407).

42022505 is a wasteful number, since it uses less digits than its factorization.

42022505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200655.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 42022505 is about 6482.4767643240. The cubic root of 42022505 is about 347.6647391009.

Adding to 42022505 its reverse (50522024), we get a palindrome (92544529).

The spelling of 42022505 in words is "forty-two million, twenty-two thousand, five hundred five".