51083447 has 2 divisors, whose sum is σ = 51083448. Its totient is φ = 51083446.

The previous prime is 51083411. The next prime is 51083491. The reversal of 51083447 is 74438015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51083447 - 2²⁰ = 50034871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51083497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25541723 + 25541724.

It is an arithmetic number, because the mean of its divisors is an integer number (25541724).

Almost surely, 2^51083447 is an apocalyptic number.

51083447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51083447 is an equidigital number, since it uses as much as digits as its factorization.

51083447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 51083447 is about 7147.2684992240. The cubic root of 51083447 is about 371.0451264120.

The spelling of 51083447 in words is "fifty-one million, eighty-three thousand, four hundred forty-seven".