53222044240 has 160 divisors (see below), whose sum is σ = 129987680256. Its totient is φ = 20244357120.

The previous prime is 53222044171. The next prime is 53222044241. The reversal of 53222044240 is 4244022235.

It is a junction number, because it is equal to n+sod(n) for n = 53222044199 and 53222044208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53222044241) 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, 48251529 + ... + 48252631.

Almost surely, 2^53222044240 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 53222044240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64993840128).

53222044240 is an abundant number, since it is smaller than the sum of its proper divisors (76765636016).

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

53222044240 is a wasteful number, since it uses less digits than its factorization.

53222044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 53222044240 its reverse (4244022235), we get a palindrome (57466066475).

The spelling of 53222044240 in words is "fifty-three billion, two hundred twenty-two million, forty-four thousand, two hundred forty".