42068555 has 8 divisors (see below), whose sum is σ = 50594544. Its totient is φ = 33580000.

The previous prime is 42068549. The next prime is 42068561. The reversal of 42068555 is 55586024.

It is an interprime number because it is at equal distance from previous prime (42068549) and next prime (42068561).

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

It is not a de Polignac number, because 42068555 - 2¹² = 42064459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6821 + ... + 11430.

It is an arithmetic number, because the mean of its divisors is an integer number (6324318).

Almost surely, 2^42068555 is an apocalyptic number.

42068555 is a deficient number, since it is larger than the sum of its proper divisors (8525989).

42068555 is a wasteful number, since it uses less digits than its factorization.

42068555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18717.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 42068555 is about 6486.0276749332. The cubic root of 42068555 is about 347.7916878764.

The spelling of 42068555 in words is "forty-two million, sixty-eight thousand, five hundred fifty-five".