50042421 has 48 divisors (see below), whose sum is σ = 87664320. Its totient is φ = 27967680.

The previous prime is 50042417. The next prime is 50042423. The reversal of 50042421 is 12424005.

It is not a de Polignac number, because 50042421 - 2² = 50042417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50042394 and 50042403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50042423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49695 + ... + 50691.

It is an arithmetic number, because the mean of its divisors is an integer number (1826340).

Almost surely, 2^50042421 is an apocalyptic number.

It is an amenable number.

50042421 is a deficient number, since it is larger than the sum of its proper divisors (37621899).

50042421 is a wasteful number, since it uses less digits than its factorization.

50042421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 50042421 is about 7074.0667935778. The cubic root of 50042421 is about 368.5073072800.

Adding to 50042421 its reverse (12424005), we get a palindrome (62466426).

The spelling of 50042421 in words is "fifty million, forty-two thousand, four hundred twenty-one".