653222120 has 16 divisors (see below), whose sum is σ = 1469749860. Its totient is φ = 261288832.

The previous prime is 653222047. The next prime is 653222123. The reversal of 653222120 is 21222356.

It can be written as a sum of positive squares in 2 ways, for example, as 636754756 + 16467364 = 25234^2 + 4058^2 .

It is not an unprimeable number, because it can be changed into a prime (653222123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8165237 + ... + 8165316.

Almost surely, 2^653222120 is an apocalyptic number.

It is an amenable number.

653222120 is an abundant number, since it is smaller than the sum of its proper divisors (816527740).

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

653222120 is a wasteful number, since it uses less digits than its factorization.

653222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330564 (or 16330560 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 653222120 is about 25558.2104224846. The cubic root of 653222120 is about 867.6680935635.

Adding to 653222120 its reverse (21222356), we get a palindrome (674444476).

The spelling of 653222120 in words is "six hundred fifty-three million, two hundred twenty-two thousand, one hundred twenty".