42533111 has 4 divisors (see below), whose sum is σ = 43999800. Its totient is φ = 41066424.

The previous prime is 42533089. The next prime is 42533131. The reversal of 42533111 is 11133524.

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

It is a cyclic number.

It is not a de Polignac number, because 42533111 - 2¹⁸ = 42270967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42533131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733301 + ... + 733358.

It is an arithmetic number, because the mean of its divisors is an integer number (10999950).

Almost surely, 2^42533111 is an apocalyptic number.

42533111 is a deficient number, since it is larger than the sum of its proper divisors (1466689).

42533111 is a wasteful number, since it uses less digits than its factorization.

42533111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466688.

The product of its digits is 360, while the sum is 20.

The square root of 42533111 is about 6521.7414085503. The cubic root of 42533111 is about 349.0672059911.

Adding to 42533111 its reverse (11133524), we get a palindrome (53666635).

The spelling of 42533111 in words is "forty-two million, five hundred thirty-three thousand, one hundred eleven".