51706327 has 2 divisors, whose sum is σ = 51706328. Its totient is φ = 51706326.

The previous prime is 51706321. The next prime is 51706331. The reversal of 51706327 is 72360715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51706327 - 2⁷ = 51706199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51706321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25853163 + 25853164.

It is an arithmetic number, because the mean of its divisors is an integer number (25853164).

Almost surely, 2^51706327 is an apocalyptic number.

51706327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51706327 is an equidigital number, since it uses as much as digits as its factorization.

51706327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 51706327 is about 7190.7111609353. The cubic root of 51706327 is about 372.5471363560.

The spelling of 51706327 in words is "fifty-one million, seven hundred six thousand, three hundred twenty-seven".