50364721 has 4 divisors (see below), whose sum is σ = 54943344. Its totient is φ = 45786100.

The previous prime is 50364719. The next prime is 50364731. The reversal of 50364721 is 12746305.

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 50364721 - 2¹ = 50364719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50364721.

It is not an unprimeable number, because it can be changed into a prime (50364731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2289295 + ... + 2289316.

It is an arithmetic number, because the mean of its divisors is an integer number (13735836).

Almost surely, 2^50364721 is an apocalyptic number.

It is an amenable number.

50364721 is a deficient number, since it is larger than the sum of its proper divisors (4578623).

50364721 is a wasteful number, since it uses less digits than its factorization.

50364721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578622.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 50364721 is about 7096.8106216807. The cubic root of 50364721 is about 369.2967430600.

The spelling of 50364721 in words is "fifty million, three hundred sixty-four thousand, seven hundred twenty-one".