52345440000 has 900 divisors, whose sum is σ = 223293010864. Its totient is φ = 11943936000.

The previous prime is 52345439989. The next prime is 52345440041. The reversal of 52345440000 is 4454325.

It is a tau number, because it is divible by the number of its divisors (900).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 90719712 + ... + 90720288.

Almost surely, 2^52345440000 is an apocalyptic number.

52345440000 is a gapful number since it is divisible by the number (50) 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 52345440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111646505432).

52345440000 is an abundant number, since it is smaller than the sum of its proper divisors (170947570864).

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

52345440000 is an frugal number, since it uses more digits than its factorization.

52345440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 52345440000 its reverse (4454325), we get a palindrome (52349894325).

The spelling of 52345440000 in words is "fifty-two billion, three hundred forty-five million, four hundred forty thousand".