53231111 has 2 divisors, whose sum is σ = 53231112. Its totient is φ = 53231110.

The previous prime is 53231093. The next prime is 53231117. The reversal of 53231111 is 11113235.

53231111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53231111 - 2²² = 49036807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53231111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53231117) 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 as a sum of consecutive naturals, namely, 26615555 + 26615556.

It is an arithmetic number, because the mean of its divisors is an integer number (26615556).

Almost surely, 2^53231111 is an apocalyptic number.

53231111 is a deficient number, since it is larger than the sum of its proper divisors (1).

53231111 is an equidigital number, since it uses as much as digits as its factorization.

53231111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90, while the sum is 17.

The square root of 53231111 is about 7295.9653919135. The cubic root of 53231111 is about 376.1737704972.

Adding to 53231111 its reverse (11113235), we get a palindrome (64344346).

The spelling of 53231111 in words is "fifty-three million, two hundred thirty-one thousand, one hundred eleven".