42075755 has 4 divisors (see below), whose sum is σ = 50490912. Its totient is φ = 33660600.

The previous prime is 42075751. The next prime is 42075757. The reversal of 42075755 is 55757024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42075755 - 2² = 42075751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42075751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4207571 + ... + 4207580.

It is an arithmetic number, because the mean of its divisors is an integer number (12622728).

Almost surely, 2^42075755 is an apocalyptic number.

42075755 is a deficient number, since it is larger than the sum of its proper divisors (8415157).

42075755 is an equidigital number, since it uses as much as digits as its factorization.

42075755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8415156.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 42075755 is about 6486.5826904465. The cubic root of 42075755 is about 347.8115281689.

The spelling of 42075755 in words is "forty-two million, seventy-five thousand, seven hundred fifty-five".