42126555 has 8 divisors (see below), whose sum is σ = 67402512. Its totient is φ = 22467488.

The previous prime is 42126533. The next prime is 42126563. The reversal of 42126555 is 55562124.

42126555 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 42126555 - 2¹⁸ = 41864411 is a prime.

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, 1404204 + ... + 1404233.

It is an arithmetic number, because the mean of its divisors is an integer number (8425314).

Almost surely, 2^42126555 is an apocalyptic number.

42126555 is a deficient number, since it is larger than the sum of its proper divisors (25275957).

42126555 is a wasteful number, since it uses less digits than its factorization.

42126555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808445.

The product of its digits is 12000, while the sum is 30.

The square root of 42126555 is about 6490.4972844922. The cubic root of 42126555 is about 347.9514481743.

Adding to 42126555 its reverse (55562124), we get a palindrome (97688679).

The spelling of 42126555 in words is "forty-two million, one hundred twenty-six thousand, five hundred fifty-five".