53442432032 has 144 divisors (see below), whose sum is σ = 119072159136. Its totient is φ = 23579212800.

The previous prime is 53442432031. The next prime is 53442432053. The reversal of 53442432032 is 23023424435.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 53442432032.

It is not an unprimeable number, because it can be changed into a prime (53442432031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36035963 + ... + 36037445.

It is an arithmetic number, because the mean of its divisors is an integer number (826889994).

Almost surely, 2^53442432032 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 53442432032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59536079568).

53442432032 is an abundant number, since it is smaller than the sum of its proper divisors (65629727104).

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

53442432032 is a wasteful number, since it uses less digits than its factorization.

53442432032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 53442432032 its reverse (23023424435), we get a palindrome (76465856467).

The spelling of 53442432032 in words is "fifty-three billion, four hundred forty-two million, four hundred thirty-two thousand, thirty-two".