50490518400 has 768 divisors, whose sum is σ = 218071756800. Its totient is φ = 11164262400.

The previous prime is 50490518389. The next prime is 50490518443. The reversal of 50490518400 is 481509405.

50490518400 is a `hidden beast` number, since 50 + 4 + 90 + 518 + 4 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18747454 + ... + 18750146.

It is an arithmetic number, because the mean of its divisors is an integer number (283947600).

Almost surely, 2^50490518400 is an apocalyptic number.

50490518400 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 50490518400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109035878400).

50490518400 is an abundant number, since it is smaller than the sum of its proper divisors (167581238400).

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

50490518400 is a wasteful number, since it uses less digits than its factorization.

50490518400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 50490518400 in words is "fifty billion, four hundred ninety million, five hundred eighteen thousand, four hundred".