42955249 has 4 divisors (see below), whose sum is σ = 44002980. Its totient is φ = 41907520.

The previous prime is 42955193. The next prime is 42955271. The reversal of 42955249 is 94255924.

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 3265249 + 39690000 = 1807^2 + 6300^2 .

It is a cyclic number.

It is not a de Polignac number, because 42955249 - 2¹¹ = 42953201 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (42955279) 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, 523804 + ... + 523885.

It is an arithmetic number, because the mean of its divisors is an integer number (11000745).

Almost surely, 2^42955249 is an apocalyptic number.

It is an amenable number.

42955249 is a deficient number, since it is larger than the sum of its proper divisors (1047731).

42955249 is a wasteful number, since it uses less digits than its factorization.

42955249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047730.

The product of its digits is 129600, while the sum is 40.

The square root of 42955249 is about 6554.0254042840. The cubic root of 42955249 is about 350.2182285299.

The spelling of 42955249 in words is "forty-two million, nine hundred fifty-five thousand, two hundred forty-nine".