50716021 has 2 divisors, whose sum is σ = 50716022. Its totient is φ = 50716020.

The previous prime is 50716013. The next prime is 50716037. The reversal of 50716021 is 12061705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 376996 = 7095^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 50716021 - 2³ = 50716013 is a prime.

It is a super-2 number, since 2×50716021² = 5144229572144882, which contains 22 as substring.

It is a Chen prime.

It is equal to p_3041482 and since 50716021 and 3041482 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 50715983 and 50716001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50716091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25358010 + 25358011.

It is an arithmetic number, because the mean of its divisors is an integer number (25358011).

Almost surely, 2^50716021 is an apocalyptic number.

It is an amenable number.

50716021 is a deficient number, since it is larger than the sum of its proper divisors (1).

50716021 is an equidigital number, since it uses as much as digits as its factorization.

50716021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 50716021 is about 7121.5181667956. The cubic root of 50716021 is about 370.1533841776.

Adding to 50716021 its reverse (12061705), we get a palindrome (62777726).

The spelling of 50716021 in words is "fifty million, seven hundred sixteen thousand, twenty-one".