50561280000 has 1920 divisors, whose sum is σ = 245621376000. Its totient is φ = 9953280000.

The previous prime is 50561279971. The next prime is 50561280041. The reversal of 50561280000 is 8216505.

It is a tau number, because it is divible by the number of its divisors (1920).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2661119991 + ... + 2661120009.

It is an arithmetic number, because the mean of its divisors is an integer number (127927800).

Almost surely, 2^50561280000 is an apocalyptic number.

50561280000 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 50561280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122810688000).

50561280000 is an abundant number, since it is smaller than the sum of its proper divisors (195060096000).

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

50561280000 is a wasteful number, since it uses less digits than its factorization.

50561280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 50561280000 its reverse (8216505), we get a palindrome (50569496505).

The spelling of 50561280000 in words is "fifty billion, five hundred sixty-one million, two hundred eighty thousand".