50233721 has 4 divisors (see below), whose sum is σ = 51085200. Its totient is φ = 49382244.

The previous prime is 50233717. The next prime is 50233723. The reversal of 50233721 is 12733205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50233721 - 2² = 50233717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50233723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425651 + ... + 425768.

It is an arithmetic number, because the mean of its divisors is an integer number (12771300).

Almost surely, 2^50233721 is an apocalyptic number.

It is an amenable number.

50233721 is a deficient number, since it is larger than the sum of its proper divisors (851479).

50233721 is an equidigital number, since it uses as much as digits as its factorization.

50233721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851478.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 50233721 is about 7087.5751142404. The cubic root of 50233721 is about 368.9762814542.

Adding to 50233721 its reverse (12733205), we get a palindrome (62966926).

The spelling of 50233721 in words is "fifty million, two hundred thirty-three thousand, seven hundred twenty-one".