51684527 has 2 divisors, whose sum is σ = 51684528. Its totient is φ = 51684526.

The previous prime is 51684461. The next prime is 51684547. The reversal of 51684527 is 72548615.

51684527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51684527 - 2²⁰ = 50635951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51684547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25842263 + 25842264.

It is an arithmetic number, because the mean of its divisors is an integer number (25842264).

Almost surely, 2^51684527 is an apocalyptic number.

51684527 is a deficient number, since it is larger than the sum of its proper divisors (1).

51684527 is an equidigital number, since it uses as much as digits as its factorization.

51684527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The square root of 51684527 is about 7189.1951566222. The cubic root of 51684527 is about 372.4947722342.

The spelling of 51684527 in words is "fifty-one million, six hundred eighty-four thousand, five hundred twenty-seven".