52403325312 has 384 divisors, whose sum is σ = 156704803200. Its totient is φ = 15498362880.

The previous prime is 52403325277. The next prime is 52403325329. The reversal of 52403325312 is 21352330425.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×52403325312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52403325312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 248356887 + ... + 248357097.

It is an arithmetic number, because the mean of its divisors is an integer number (408085425).

Almost surely, 2^52403325312 is an apocalyptic number.

52403325312 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 52403325312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78352401600).

52403325312 is an abundant number, since it is smaller than the sum of its proper divisors (104301477888).

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

52403325312 is a wasteful number, since it uses less digits than its factorization.

52403325312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 52403325312 its reverse (21352330425), we get a palindrome (73755655737).

The spelling of 52403325312 in words is "fifty-two billion, four hundred three million, three hundred twenty-five thousand, three hundred twelve".