653531112 has 96 divisors (see below), whose sum is σ = 1965859200. Its totient is φ = 201075264.

The previous prime is 653531101. The next prime is 653531143. The reversal of 653531112 is 211135356.

653531112 is a `hidden beast` number, since 653 + 5 + 3 + 1 + 1 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27553 + ... + 45455.

It is an arithmetic number, because the mean of its divisors is an integer number (20477700).

Almost surely, 2^653531112 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 653531112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982929600).

653531112 is an abundant number, since it is smaller than the sum of its proper divisors (1312328088).

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

653531112 is a wasteful number, since it uses less digits than its factorization.

653531112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17944 (or 17921 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 653531112 is about 25564.2545754810. The cubic root of 653531112 is about 867.8048822756.

Adding to 653531112 its reverse (211135356), we get a palindrome (864666468).

The spelling of 653531112 in words is "six hundred fifty-three million, five hundred thirty-one thousand, one hundred twelve".