52401320352 has 36 divisors (see below), whose sum is σ = 149016255570. Its totient is φ = 17467106688.

The previous prime is 52401320341. The next prime is 52401320383. The reversal of 52401320352 is 25302310425.

It is a happy number.

52401320352 is a `hidden beast` number, since 5 + 2 + 401 + 3 + 203 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30163352976 + 22237967376 = 173676^2 + 149124^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90974227 + ... + 90974802.

Almost surely, 2^52401320352 is an apocalyptic number.

It is an amenable number.

52401320352 is an abundant number, since it is smaller than the sum of its proper divisors (96614935218).

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

52401320352 is a wasteful number, since it uses less digits than its factorization.

52401320352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181949045 (or 181949034 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 52401320352 its reverse (25302310425), we get a palindrome (77703630777).

The spelling of 52401320352 in words is "fifty-two billion, four hundred one million, three hundred twenty thousand, three hundred fifty-two".