42217611 has 4 divisors (see below), whose sum is σ = 56290152. Its totient is φ = 28145072.

The previous prime is 42217603. The next prime is 42217621. The reversal of 42217611 is 11671224.

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

It is a cyclic number.

It is not a de Polignac number, because 42217611 - 2³ = 42217603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42217621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7036266 + ... + 7036271.

It is an arithmetic number, because the mean of its divisors is an integer number (14072538).

Almost surely, 2^42217611 is an apocalyptic number.

42217611 is a deficient number, since it is larger than the sum of its proper divisors (14072541).

42217611 is a wasteful number, since it uses less digits than its factorization.

42217611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14072540.

The product of its digits is 672, while the sum is 24.

The square root of 42217611 is about 6497.5080607876. The cubic root of 42217611 is about 348.2019652724.

Adding to 42217611 its reverse (11671224), we get a palindrome (53888835).

The spelling of 42217611 in words is "forty-two million, two hundred seventeen thousand, six hundred eleven".