50021717 has 8 divisors (see below), whose sum is σ = 50833560. Its totient is φ = 49213440.

The previous prime is 50021707. The next prime is 50021747. The reversal of 50021717 is 71712005.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18054001 + 31967716 = 4249^2 + 5654^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50021717 - 2²² = 45827413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50021692 and 50021701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50021707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46259 + ... + 47327.

It is an arithmetic number, because the mean of its divisors is an integer number (6354195).

Almost surely, 2^50021717 is an apocalyptic number.

It is an amenable number.

50021717 is a deficient number, since it is larger than the sum of its proper divisors (811843).

50021717 is a wasteful number, since it uses less digits than its factorization.

50021717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 50021717 is about 7072.6032689527. The cubic root of 50021717 is about 368.4564795517.

The spelling of 50021717 in words is "fifty million, twenty-one thousand, seven hundred seventeen".