52144332240 has 640 divisors, whose sum is σ = 226497503232. Its totient is φ = 9565839360.

The previous prime is 52144332199. The next prime is 52144332269. The reversal of 52144332240 is 4223344125.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52144332198 and 52144332207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5520802 + ... + 5530238.

Almost surely, 2^52144332240 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 52144332240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113248751616).

52144332240 is an abundant number, since it is smaller than the sum of its proper divisors (174353170992).

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

52144332240 is a wasteful number, since it uses less digits than its factorization.

52144332240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507 (or 9501 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 52144332240 its reverse (4223344125), we get a palindrome (56367676365).

The spelling of 52144332240 in words is "fifty-two billion, one hundred forty-four million, three hundred thirty-two thousand, two hundred forty".