53445315232 has 96 divisors (see below), whose sum is σ = 111577374720. Its totient is φ = 25129854720.

The previous prime is 53445315229. The next prime is 53445315233. The reversal of 53445315232 is 23251354435.

It is a junction number, because it is equal to n+sod(n) for n = 53445315191 and 53445315200.

It is not an unprimeable number, because it can be changed into a prime (53445315233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65900107 + ... + 65900917.

It is an arithmetic number, because the mean of its divisors is an integer number (1162264320).

Almost surely, 2^53445315232 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 53445315232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55788687360).

53445315232 is an abundant number, since it is smaller than the sum of its proper divisors (58132059488).

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

53445315232 is a wasteful number, since it uses less digits than its factorization.

53445315232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1498 counting only the distinct ones).

The product of its digits is 216000, while the sum is 37.

Adding to 53445315232 its reverse (23251354435), we get a palindrome (76696669667).

The spelling of 53445315232 in words is "fifty-three billion, four hundred forty-five million, three hundred fifteen thousand, two hundred thirty-two".