50012820 has 288 divisors, whose sum is σ = 187125120. Its totient is φ = 10644480.

The previous prime is 50012771. The next prime is 50012839. The reversal of 50012820 is 2821005.

50012820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50012793 and 50012802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 746427 + ... + 746493.

It is an arithmetic number, because the mean of its divisors is an integer number (649740).

Almost surely, 2^50012820 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 50012820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93562560).

50012820 is an abundant number, since it is smaller than the sum of its proper divisors (137112300).

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

50012820 is a wasteful number, since it uses less digits than its factorization.

50012820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 50012820 is about 7071.9742646591. The cubic root of 50012820 is about 368.4346333626.

Adding to 50012820 its reverse (2821005), we get a palindrome (52833825).

The spelling of 50012820 in words is "fifty million, twelve thousand, eight hundred twenty".