50780047 has 4 divisors (see below), whose sum is σ = 50794776. Its totient is φ = 50765320.

The previous prime is 50780029. The next prime is 50780083. The reversal of 50780047 is 74008705.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50780047 is a prime.

It is a super-2 number, since 2×50780047² = 5157226346644418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50780347) 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, 897 + ... + 10117.

It is an arithmetic number, because the mean of its divisors is an integer number (12698694).

Almost surely, 2^50780047 is an apocalyptic number.

50780047 is a deficient number, since it is larger than the sum of its proper divisors (14729).

50780047 is an equidigital number, since it uses as much as digits as its factorization.

50780047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14728.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 50780047 is about 7126.0119983059. The cubic root of 50780047 is about 370.3090843163.

The spelling of 50780047 in words is "fifty million, seven hundred eighty thousand, forty-seven".