50966921 has 8 divisors (see below), whose sum is σ = 51897384. Its totient is φ = 50042880.

The previous prime is 50966917. The next prime is 50966933. The reversal of 50966921 is 12966905.

It can be written as a sum of positive squares in 4 ways, for example, as 5593225 + 45373696 = 2365^2 + 6736^2 .

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 50966921 - 2² = 50966917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50966521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16145 + ... + 19041.

It is an arithmetic number, because the mean of its divisors is an integer number (6487173).

Almost surely, 2^50966921 is an apocalyptic number.

It is an amenable number.

50966921 is a deficient number, since it is larger than the sum of its proper divisors (930463).

50966921 is a wasteful number, since it uses less digits than its factorization.

50966921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 50966921 is about 7139.1120596332. The cubic root of 50966921 is about 370.7627823647.

The spelling of 50966921 in words is "fifty million, nine hundred sixty-six thousand, nine hundred twenty-one".