50495821 has 4 divisors (see below), whose sum is σ = 50537500. Its totient is φ = 50454144.

The previous prime is 50495791. The next prime is 50495827. The reversal of 50495821 is 12859405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33767721 + 16728100 = 5811^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 50495821 - 2⁷ = 50495693 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 (50495827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18966 + ... + 21463.

It is an arithmetic number, because the mean of its divisors is an integer number (12634375).

Almost surely, 2^50495821 is an apocalyptic number.

It is an amenable number.

50495821 is a deficient number, since it is larger than the sum of its proper divisors (41679).

50495821 is a wasteful number, since it uses less digits than its factorization.

50495821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41678.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 50495821 is about 7106.0411622788. The cubic root of 50495821 is about 369.6168934522.

The spelling of 50495821 in words is "fifty million, four hundred ninety-five thousand, eight hundred twenty-one".