50502321 has 6 divisors (see below), whose sum is σ = 72947810. Its totient is φ = 33668208.

The previous prime is 50502313. The next prime is 50502343. The reversal of 50502321 is 12320505.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 21986721 = 5340^2 + 4689^2 .

It is not a de Polignac number, because 50502321 - 2³ = 50502313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50502294 and 50502303.

It is not an unprimeable number, because it can be changed into a prime (50502301) 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 5 ways as a sum of consecutive naturals, for example, 2805676 + ... + 2805693.

Almost surely, 2^50502321 is an apocalyptic number.

It is an amenable number.

50502321 is a deficient number, since it is larger than the sum of its proper divisors (22445489).

50502321 is a wasteful number, since it uses less digits than its factorization.

50502321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611375 (or 5611372 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50502321 is about 7106.4985048897. The cubic root of 50502321 is about 369.6327522347.

Adding to 50502321 its reverse (12320505), we get a palindrome (62822826).

The spelling of 50502321 in words is "fifty million, five hundred two thousand, three hundred twenty-one".