50021843 has 6 divisors (see below), whose sum is σ = 50741412. Its totient is φ = 49312340.

The previous prime is 50021801. The next prime is 50021869. The reversal of 50021843 is 34812005.

It is not a de Polignac number, because 50021843 - 2⁶ = 50021779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50021893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80 + ... + 10002.

It is an arithmetic number, because the mean of its divisors is an integer number (8456902).

Almost surely, 2^50021843 is an apocalyptic number.

50021843 is a deficient number, since it is larger than the sum of its proper divisors (719569).

50021843 is an frugal number, since it uses more digits than its factorization.

50021843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065 (or 9994 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 50021843 is about 7072.6121765582. The cubic root of 50021843 is about 368.4567889206.

Adding to 50021843 its reverse (34812005), we get a palindrome (84833848).

The spelling of 50021843 in words is "fifty million, twenty-one thousand, eight hundred forty-three".