42553111 has 8 divisors (see below), whose sum is σ = 44355584. Its totient is φ = 40777560.

The previous prime is 42553109. The next prime is 42553127. The reversal of 42553111 is 11135524.

It is a happy number.

42553111 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 42553111 - 2¹ = 42553109 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 (42553171) 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, 3471 + ... + 9856.

It is an arithmetic number, because the mean of its divisors is an integer number (5544448).

Almost surely, 2^42553111 is an apocalyptic number.

42553111 is a deficient number, since it is larger than the sum of its proper divisors (1802473).

42553111 is a wasteful number, since it uses less digits than its factorization.

42553111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13461.

The product of its digits is 600, while the sum is 22.

The square root of 42553111 is about 6523.2745611388. The cubic root of 42553111 is about 349.1219104318.

Adding to 42553111 its reverse (11135524), we get a palindrome (53688635).

The spelling of 42553111 in words is "forty-two million, five hundred fifty-three thousand, one hundred eleven".