42242555 has 8 divisors (see below), whose sum is σ = 51870192. Its totient is φ = 33007968.

The previous prime is 42242539. The next prime is 42242573. The reversal of 42242555 is 55524224.

42242555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42242555 - 2⁴ = 42242539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98024 + ... + 98453.

It is an arithmetic number, because the mean of its divisors is an integer number (6483774).

Almost surely, 2^42242555 is an apocalyptic number.

42242555 is a deficient number, since it is larger than the sum of its proper divisors (9627637).

42242555 is a wasteful number, since it uses less digits than its factorization.

42242555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196525.

The product of its digits is 16000, while the sum is 29.

The square root of 42242555 is about 6499.4272824611. The cubic root of 42242555 is about 348.2705293903.

Adding to 42242555 its reverse (55524224), we get a palindrome (97766779).

The spelling of 42242555 in words is "forty-two million, two hundred forty-two thousand, five hundred fifty-five".