50720647 has 2 divisors, whose sum is σ = 50720648. Its totient is φ = 50720646.

The previous prime is 50720617. The next prime is 50720687. The reversal of 50720647 is 74602705.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50720647 - 2²³ = 42332039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50720617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25360323 + 25360324.

It is an arithmetic number, because the mean of its divisors is an integer number (25360324).

Almost surely, 2^50720647 is an apocalyptic number.

50720647 is a deficient number, since it is larger than the sum of its proper divisors (1).

50720647 is an equidigital number, since it uses as much as digits as its factorization.

50720647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 50720647 is about 7121.8429496865. The cubic root of 50720647 is about 370.1646381986.

The spelling of 50720647 in words is "fifty million, seven hundred twenty thousand, six hundred forty-seven".