53111112 has 16 divisors (see below), whose sum is σ = 132777840. Its totient is φ = 17703696.

The previous prime is 53111027. The next prime is 53111143. The reversal of 53111112 is 21111135.

It is a junction number, because it is equal to n+sod(n) for n = 53111091 and 53111100.

It is an unprimeable number.

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, 1106458 + ... + 1106505.

It is an arithmetic number, because the mean of its divisors is an integer number (8298615).

Almost surely, 2^53111112 is an apocalyptic number.

It is an amenable number.

53111112 is an abundant number, since it is smaller than the sum of its proper divisors (79666728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53111112 is a wasteful number, since it uses less digits than its factorization.

53111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212972 (or 2212968 counting only the distinct ones).

The product of its digits is 30, while the sum is 15.

The square root of 53111112 is about 7287.7370973437. The cubic root of 53111112 is about 375.8908880621.

Adding to 53111112 its reverse (21111135), we get a palindrome (74222247).

The spelling of 53111112 in words is "fifty-three million, one hundred eleven thousand, one hundred twelve".