50015421 has 16 divisors (see below), whose sum is σ = 75355200. Its totient is φ = 32777424.

The previous prime is 50015417. The next prime is 50015423. The reversal of 50015421 is 12451005.

It is not a de Polignac number, because 50015421 - 2² = 50015417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50015394 and 50015403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50015423) 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 15 ways as a sum of consecutive naturals, for example, 14106 + ... + 17291.

It is an arithmetic number, because the mean of its divisors is an integer number (4709700).

Almost surely, 2^50015421 is an apocalyptic number.

It is an amenable number.

50015421 is a deficient number, since it is larger than the sum of its proper divisors (25339779).

50015421 is a wasteful number, since it uses less digits than its factorization.

50015421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31465 (or 31459 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 50015421 is about 7072.1581571681. The cubic root of 50015421 is about 368.4410202708.

Adding to 50015421 its reverse (12451005), we get a palindrome (62466426).

The spelling of 50015421 in words is "fifty million, fifteen thousand, four hundred twenty-one".