50791947 has 4 divisors (see below), whose sum is σ = 67722600. Its totient is φ = 33861296.

The previous prime is 50791943. The next prime is 50791969. The reversal of 50791947 is 74919705.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50791947 - 2² = 50791943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50791899 and 50791908.

It is not an unprimeable number, because it can be changed into a prime (50791943) 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, 8465322 + ... + 8465327.

It is an arithmetic number, because the mean of its divisors is an integer number (16930650).

Almost surely, 2^50791947 is an apocalyptic number.

50791947 is a deficient number, since it is larger than the sum of its proper divisors (16930653).

50791947 is a wasteful number, since it uses less digits than its factorization.

50791947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930652.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 50791947 is about 7126.8469185187. The cubic root of 50791947 is about 370.3380086293.

The spelling of 50791947 in words is "fifty million, seven hundred ninety-one thousand, nine hundred forty-seven".