50021424 has 60 divisors (see below), whose sum is σ = 140466456. Its totient is φ = 16617216.

The previous prime is 50021407. The next prime is 50021431. The reversal of 50021424 is 42412005.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50021397 and 50021406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80764 + ... + 81380.

Almost surely, 2^50021424 is an apocalyptic number.

It is an amenable number.

50021424 is an abundant number, since it is smaller than the sum of its proper divisors (90445032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50021424 is a wasteful number, since it uses less digits than its factorization.

50021424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1185 counting only the distinct ones).

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

The square root of 50021424 is about 7072.5825551916. The cubic root of 50021424 is about 368.4557601445.

Adding to 50021424 its reverse (42412005), we get a palindrome (92433429).

The spelling of 50021424 in words is "fifty million, twenty-one thousand, four hundred twenty-four".