50989138200 has 768 divisors, whose sum is σ = 235834905600. Its totient is φ = 9779097600.

The previous prime is 50989138181. The next prime is 50989138201. The reversal of 50989138200 is 283198905.

It is a happy number.

50989138200 is a `hidden beast` number, since 509 + 8 + 9 + 138 + 2 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50989138201) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5400684 + ... + 5410116.

It is an arithmetic number, because the mean of its divisors is an integer number (307076700).

Almost surely, 2^50989138200 is an apocalyptic number.

50989138200 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 50989138200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117917452800).

50989138200 is an abundant number, since it is smaller than the sum of its proper divisors (184845767400).

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

50989138200 is a wasteful number, since it uses less digits than its factorization.

50989138200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9489 (or 9474 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 50989138200 in words is "fifty billion, nine hundred eighty-nine million, one hundred thirty-eight thousand, two hundred".