51527647 has 2 divisors, whose sum is σ = 51527648. Its totient is φ = 51527646.

The previous prime is 51527633. The next prime is 51527657. The reversal of 51527647 is 74672515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51527647 - 2¹¹ = 51525599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51527617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25763823 + 25763824.

It is an arithmetic number, because the mean of its divisors is an integer number (25763824).

Almost surely, 2^51527647 is an apocalyptic number.

51527647 is a deficient number, since it is larger than the sum of its proper divisors (1).

51527647 is an equidigital number, since it uses as much as digits as its factorization.

51527647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 51527647 is about 7178.2760465170. The cubic root of 51527647 is about 372.1175077768.

The spelling of 51527647 in words is "fifty-one million, five hundred twenty-seven thousand, six hundred forty-seven".