52455040000 has 220 divisors, whose sum is σ = 142962774768. Its totient is φ = 19072000000.

The previous prime is 52455039893. The next prime is 52455040019. The reversal of 52455040000 is 4055425.

It is a tau number, because it is divible by the number of its divisors (220).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7036275 + ... + 7043725.

Almost surely, 2^52455040000 is an apocalyptic number.

52455040000 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 52455040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71481387384).

52455040000 is an abundant number, since it is smaller than the sum of its proper divisors (90507734768).

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

52455040000 is an equidigital number, since it uses as much as digits as its factorization.

52455040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502 (or 7469 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

Adding to 52455040000 its reverse (4055425), we get a palindrome (52459095425).

The spelling of 52455040000 in words is "fifty-two billion, four hundred fifty-five million, forty thousand".