50330821 has 12 divisors (see below), whose sum is σ = 52379200. Its totient is φ = 48353760.

The previous prime is 50330801. The next prime is 50330827. The reversal of 50330821 is 12803305.

It is a de Polignac number, because none of the positive numbers 2^k-50330821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50330792 and 50330801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50330827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132610 + ... + 132988.

Almost surely, 2^50330821 is an apocalyptic number.

It is an amenable number.

50330821 is a deficient number, since it is larger than the sum of its proper divisors (2048379).

50330821 is an equidigital number, since it uses as much as digits as its factorization.

50330821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 50330821 is about 7094.4218228126. The cubic root of 50330821 is about 369.2138677905.

The spelling of 50330821 in words is "fifty million, three hundred thirty thousand, eight hundred twenty-one".