42555542 has 8 divisors (see below), whose sum is σ = 64465632. Its totient is φ = 21067000.

The previous prime is 42555523. The next prime is 42555571. The reversal of 42555542 is 24555524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42555499 and 42555508.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 105134 + ... + 105537.

It is an arithmetic number, because the mean of its divisors is an integer number (8058204).

Almost surely, 2^42555542 is an apocalyptic number.

42555542 is a deficient number, since it is larger than the sum of its proper divisors (21910090).

42555542 is a wasteful number, since it uses less digits than its factorization.

42555542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210774.

The product of its digits is 40000, while the sum is 32.

The square root of 42555542 is about 6523.4608912754. The cubic root of 42555542 is about 349.1285585881.

The spelling of 42555542 in words is "forty-two million, five hundred fifty-five thousand, five hundred forty-two".