42533289 has 8 divisors (see below), whose sum is σ = 63012320. Its totient is φ = 28355508.

The previous prime is 42533273. The next prime is 42533291. The reversal of 42533289 is 98233524.

42533289 is a `hidden beast` number, since 42 + 533 + 2 + 89 = 666.

It is not a de Polignac number, because 42533289 - 2⁴ = 42533273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42533089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787627 + ... + 787680.

It is an arithmetic number, because the mean of its divisors is an integer number (7876540).

Almost surely, 2^42533289 is an apocalyptic number.

It is an amenable number.

42533289 is a deficient number, since it is larger than the sum of its proper divisors (20479031).

42533289 is a wasteful number, since it uses less digits than its factorization.

42533289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575316 (or 1575310 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 42533289 is about 6521.7550551979. The cubic root of 42533289 is about 349.0676929363.

The spelling of 42533289 in words is "forty-two million, five hundred thirty-three thousand, two hundred eighty-nine".