51829847 has 2 divisors, whose sum is σ = 51829848. Its totient is φ = 51829846.

The previous prime is 51829807. The next prime is 51829849. The reversal of 51829847 is 74892815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51829847 - 2⁶ = 51829783 is a prime.

Together with 51829849, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51829798 and 51829807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51829849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25914923 + 25914924.

It is an arithmetic number, because the mean of its divisors is an integer number (25914924).

Almost surely, 2^51829847 is an apocalyptic number.

51829847 is a deficient number, since it is larger than the sum of its proper divisors (1).

51829847 is an equidigital number, since it uses as much as digits as its factorization.

51829847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 44.

The square root of 51829847 is about 7199.2948960297. The cubic root of 51829847 is about 372.8435567396.

The spelling of 51829847 in words is "fifty-one million, eight hundred twenty-nine thousand, eight hundred forty-seven".