42833521 has 8 divisors (see below), whose sum is σ = 44817984. Its totient is φ = 40859280.

The previous prime is 42833509. The next prime is 42833573. The reversal of 42833521 is 12533824.

42833521 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 a cyclic number.

It is not a de Polignac number, because 42833521 - 2¹⁷ = 42702449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42833521.

It is not an unprimeable number, because it can be changed into a prime (42833501) 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, 6786 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (5602248).

Almost surely, 2^42833521 is an apocalyptic number.

It is an amenable number.

42833521 is a deficient number, since it is larger than the sum of its proper divisors (1984463).

42833521 is a wasteful number, since it uses less digits than its factorization.

42833521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

The product of its digits is 5760, while the sum is 28.

The square root of 42833521 is about 6544.7323092698. The cubic root of 42833521 is about 349.8870955555.

The spelling of 42833521 in words is "forty-two million, eight hundred thirty-three thousand, five hundred twenty-one".