50021712 has 100 divisors (see below), whose sum is σ = 155966580. Its totient is φ = 15386112.

The previous prime is 50021707. The next prime is 50021747. The reversal of 50021712 is 21712005.

50021712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2742336 + 47279376 = 1656^2 + 6876^2 .

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

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 19 ways as a sum of consecutive naturals, for example, 15364 + ... + 18332.

Almost surely, 2^50021712 is an apocalyptic number.

50021712 is a gapful number since it is divisible by the number (52) 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 50021712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77983290).

50021712 is an abundant number, since it is smaller than the sum of its proper divisors (105944868).

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

50021712 is a wasteful number, since it uses less digits than its factorization.

50021712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 50021712 is about 7072.6029154760. The cubic root of 50021712 is about 368.4564672752.

Adding to 50021712 its reverse (21712005), we get a palindrome (71733717).

The spelling of 50021712 in words is "fifty million, twenty-one thousand, seven hundred twelve".