42217475 has 12 divisors (see below), whose sum is σ = 54155760. Its totient is φ = 32608800.

The previous prime is 42217471. The next prime is 42217493. The reversal of 42217475 is 57471224.

It is not a de Polignac number, because 42217475 - 2² = 42217471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42217471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28391 + ... + 29840.

It is an arithmetic number, because the mean of its divisors is an integer number (4512980).

Almost surely, 2^42217475 is an apocalyptic number.

42217475 is a deficient number, since it is larger than the sum of its proper divisors (11938285).

42217475 is a wasteful number, since it uses less digits than its factorization.

42217475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58270 (or 58265 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 42217475 is about 6497.4975952285. The cubic root of 42217475 is about 348.2015913722.

Adding to 42217475 its reverse (57471224), we get a palindrome (99688699).

The spelling of 42217475 in words is "forty-two million, two hundred seventeen thousand, four hundred seventy-five".