42075265 has 4 divisors (see below), whose sum is σ = 50490324. Its totient is φ = 33660208.

The previous prime is 42075247. The next prime is 42075301. The reversal of 42075265 is 56257024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28005264 + 14070001 = 5292^2 + 3751^2 .

It is a cyclic number.

It is not a de Polignac number, because 42075265 - 2¹¹ = 42073217 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4207522 + ... + 4207531.

It is an arithmetic number, because the mean of its divisors is an integer number (12622581).

Almost surely, 2^42075265 is an apocalyptic number.

It is an amenable number.

42075265 is a deficient number, since it is larger than the sum of its proper divisors (8415059).

42075265 is an equidigital number, since it uses as much as digits as its factorization.

42075265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8415058.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 42075265 is about 6486.5449200634. The cubic root of 42075265 is about 347.8101779986.

The spelling of 42075265 in words is "forty-two million, seventy-five thousand, two hundred sixty-five".