52400463232 has 128 divisors (see below), whose sum is σ = 118151177760. Its totient is φ = 22982787072.

The previous prime is 52400463191. The next prime is 52400463331. The reversal of 52400463232 is 23236400425.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 52400463194 and 52400463203.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2637528 + ... + 2657320.

Almost surely, 2^52400463232 is an apocalyptic number.

52400463232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52400463232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59075588880).

52400463232 is an abundant number, since it is smaller than the sum of its proper divisors (65750714528).

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

52400463232 is a wasteful number, since it uses less digits than its factorization.

52400463232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19900 (or 19888 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 52400463232 its reverse (23236400425), we get a palindrome (75636863657).

The spelling of 52400463232 in words is "fifty-two billion, four hundred million, four hundred sixty-three thousand, two hundred thirty-two".