50921717 has 8 divisors (see below), whose sum is σ = 63486912. Its totient is φ = 39679200.

The previous prime is 50921707. The next prime is 50921719. The reversal of 50921717 is 71712905.

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

It is not a de Polignac number, because 50921717 - 2⁸ = 50921461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50921719) 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, 330584 + ... + 330737.

It is an arithmetic number, because the mean of its divisors is an integer number (7935864).

Almost surely, 2^50921717 is an apocalyptic number.

It is an amenable number.

50921717 is a deficient number, since it is larger than the sum of its proper divisors (12565195).

50921717 is a wasteful number, since it uses less digits than its factorization.

50921717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661339.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 50921717 is about 7135.9454173921. The cubic root of 50921717 is about 370.6531366187.

The spelling of 50921717 in words is "fifty million, nine hundred twenty-one thousand, seven hundred seventeen".