50310021 has 8 divisors (see below), whose sum is σ = 71025984. Its totient is φ = 31567040.

The previous prime is 50310017. The next prime is 50310023. The reversal of 50310021 is 12001305.

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 50310021 - 2² = 50310017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50309979 and 50310006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50310023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493185 + ... + 493286.

It is an arithmetic number, because the mean of its divisors is an integer number (8878248).

Almost surely, 2^50310021 is an apocalyptic number.

50310021 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50310021 is a deficient number, since it is larger than the sum of its proper divisors (20715963).

50310021 is a wasteful number, since it uses less digits than its factorization.

50310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986491.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 50310021 is about 7092.9557308642. The cubic root of 50310021 is about 369.1629996448.

Adding to 50310021 its reverse (12001305), we get a palindrome (62311326).

The spelling of 50310021 in words is "fifty million, three hundred ten thousand, twenty-one".