50005440000 has 600 divisors, whose sum is σ = 183218195160. Its totient is φ = 13123584000.

The previous prime is 50005439983. The next prime is 50005440011. The reversal of 50005440000 is 4450005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 279359911 + ... + 279360089.

Almost surely, 2^50005440000 is an apocalyptic number.

50005440000 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 50005440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91609097580).

50005440000 is an abundant number, since it is smaller than the sum of its proper divisors (133212755160).

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

50005440000 is an equidigital number, since it uses as much as digits as its factorization.

50005440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

Adding to 50005440000 its reverse (4450005), we get a palindrome (50009890005).

The spelling of 50005440000 in words is "fifty billion, five million, four hundred forty thousand".