53216112 has 160 divisors (see below), whose sum is σ = 157132800. Its totient is φ = 15434496.

The previous prime is 53216063. The next prime is 53216113. The reversal of 53216112 is 21161235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53216113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 901939 + ... + 901997.

It is an arithmetic number, because the mean of its divisors is an integer number (982080).

Almost surely, 2^53216112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53216112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78566400).

53216112 is an abundant number, since it is smaller than the sum of its proper divisors (103916688).

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

53216112 is a wasteful number, since it uses less digits than its factorization.

53216112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 149 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 53216112 is about 7294.9374226240. The cubic root of 53216112 is about 376.1384355193.

Adding to 53216112 its reverse (21161235), we get a palindrome (74377347).

The spelling of 53216112 in words is "fifty-three million, two hundred sixteen thousand, one hundred twelve".