42773565 has 8 divisors (see below), whose sum is σ = 68437728. Its totient is φ = 22812560.

The previous prime is 42773501. The next prime is 42773567. The reversal of 42773565 is 56537724.

42773565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42773565 - 2⁶ = 42773501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42773567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425771 + ... + 1425800.

It is an arithmetic number, because the mean of its divisors is an integer number (8554716).

Almost surely, 2^42773565 is an apocalyptic number.

It is an amenable number.

42773565 is a deficient number, since it is larger than the sum of its proper divisors (25664163).

42773565 is a wasteful number, since it uses less digits than its factorization.

42773565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851579.

The product of its digits is 176400, while the sum is 39.

The square root of 42773565 is about 6540.1502276324. The cubic root of 42773565 is about 349.7237684408.

The spelling of 42773565 in words is "forty-two million, seven hundred seventy-three thousand, five hundred sixty-five".