50821188 has 48 divisors (see below), whose sum is σ = 130394880. Its totient is φ = 15277600.

The previous prime is 50821171. The next prime is 50821229. The reversal of 50821188 is 88112805.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15823 + ... + 18761.

It is an arithmetic number, because the mean of its divisors is an integer number (2716560).

Almost surely, 2^50821188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50821188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65197440).

50821188 is an abundant number, since it is smaller than the sum of its proper divisors (79573692).

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

50821188 is a wasteful number, since it uses less digits than its factorization.

50821188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3086 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 50821188 is about 7128.8980915707. The cubic root of 50821188 is about 370.4090630445.

The spelling of 50821188 in words is "fifty million, eight hundred twenty-one thousand, one hundred eighty-eight".