52233220440 has 128 divisors (see below), whose sum is σ = 174361636800. Its totient is φ = 13908787200.

The previous prime is 52233220427. The next prime is 52233220441. The reversal of 52233220440 is 4402233225.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52233220441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722584 + ... + 791576.

Almost surely, 2^52233220440 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 52233220440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87180818400).

52233220440 is an abundant number, since it is smaller than the sum of its proper divisors (122128416360).

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

52233220440 is a wasteful number, since it uses less digits than its factorization.

52233220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69714 (or 69704 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 52233220440 its reverse (4402233225), we get a palindrome (56635453665).

The spelling of 52233220440 in words is "fifty-two billion, two hundred thirty-three million, two hundred twenty thousand, four hundred forty".