51747827 has 2 divisors, whose sum is σ = 51747828. Its totient is φ = 51747826.

The previous prime is 51747823. The next prime is 51747869. The reversal of 51747827 is 72874715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51747827 - 2² = 51747823 is a prime.

It is a Chen prime.

It is equal to p_3099596 and since 51747827 and 3099596 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51747823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25873913 + 25873914.

It is an arithmetic number, because the mean of its divisors is an integer number (25873914).

Almost surely, 2^51747827 is an apocalyptic number.

51747827 is a deficient number, since it is larger than the sum of its proper divisors (1).

51747827 is an equidigital number, since it uses as much as digits as its factorization.

51747827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 41.

The square root of 51747827 is about 7193.5962494430. The cubic root of 51747827 is about 372.6467796853.

The spelling of 51747827 in words is "fifty-one million, seven hundred forty-seven thousand, eight hundred twenty-seven".