50011800 has 192 divisors, whose sum is σ = 168739200. Its totient is φ = 12211200.

The previous prime is 50011777. The next prime is 50011831. The reversal of 50011800 is 811005.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 50011800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 467347 + ... + 467453.

It is an arithmetic number, because the mean of its divisors is an integer number (878850).

Almost surely, 2^50011800 is an apocalyptic number.

50011800 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 50011800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84369600).

50011800 is an abundant number, since it is smaller than the sum of its proper divisors (118727400).

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

50011800 is a wasteful number, since it uses less digits than its factorization.

50011800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 50011800 is about 7071.9021486443. The cubic root of 50011800 is about 368.4321286323.

Adding to 50011800 its reverse (811005), we get a palindrome (50822805).

The spelling of 50011800 in words is "fifty million, eleven thousand, eight hundred".