52359229440 has 832 divisors, whose sum is σ = 216651294720. Its totient is φ = 11896160256.

The previous prime is 52359229411. The next prime is 52359229471. The reversal of 52359229440 is 4492295325.

52359229440 is a `hidden beast` number, since 5 + 2 + 359 + 2 + 294 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 313528237 + ... + 313528403.

Almost surely, 2^52359229440 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 52359229440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108325647360).

52359229440 is an abundant number, since it is smaller than the sum of its proper divisors (164292065280).

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

52359229440 is an frugal number, since it uses more digits than its factorization.

52359229440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 52359229440 in words is "fifty-two billion, three hundred fifty-nine million, two hundred twenty-nine thousand, four hundred forty".