51732647 has 2 divisors, whose sum is σ = 51732648. Its totient is φ = 51732646.

The previous prime is 51732641. The next prime is 51732661. The reversal of 51732647 is 74623715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51732647 - 2⁴ = 51732631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51732641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25866323 + 25866324.

It is an arithmetic number, because the mean of its divisors is an integer number (25866324).

Almost surely, 2^51732647 is an apocalyptic number.

51732647 is a deficient number, since it is larger than the sum of its proper divisors (1).

51732647 is an equidigital number, since it uses as much as digits as its factorization.

51732647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 51732647 is about 7192.5410669665. The cubic root of 51732647 is about 372.6103380176.

The spelling of 51732647 in words is "fifty-one million, seven hundred thirty-two thousand, six hundred forty-seven".