50447979 has 6 divisors (see below), whose sum is σ = 72869316. Its totient is φ = 33631980.

The previous prime is 50447977. The next prime is 50448007. The reversal of 50447979 is 97974405.

50447979 is a `hidden beast` number, since 504 + 4 + 79 + 79 = 666.

It is not a de Polignac number, because 50447979 - 2¹ = 50447977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50447977) 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, 2802657 + ... + 2802674.

It is an arithmetic number, because the mean of its divisors is an integer number (12144886).

Almost surely, 2^50447979 is an apocalyptic number.

50447979 is a deficient number, since it is larger than the sum of its proper divisors (22421337).

50447979 is a wasteful number, since it uses less digits than its factorization.

50447979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605337 (or 5605334 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 50447979 is about 7102.6740738964. The cubic root of 50447979 is about 369.5001260404.

The spelling of 50447979 in words is "fifty million, four hundred forty-seven thousand, nine hundred seventy-nine".