50316721 has 16 divisors (see below), whose sum is σ = 62294400. Its totient is φ = 39575808.

The previous prime is 50316701. The next prime is 50316727. The reversal of 50316721 is 12761305.

It is a cyclic number.

It is not a de Polignac number, because 50316721 - 2¹³ = 50308529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50316727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14745 + ... + 17833.

It is an arithmetic number, because the mean of its divisors is an integer number (3893400).

Almost surely, 2^50316721 is an apocalyptic number.

It is an amenable number.

50316721 is a deficient number, since it is larger than the sum of its proper divisors (11977679).

50316721 is a wasteful number, since it uses less digits than its factorization.

50316721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 50316721 is about 7093.4280147190. The cubic root of 50316721 is about 369.1793865876.

The spelling of 50316721 in words is "fifty million, three hundred sixteen thousand, seven hundred twenty-one".