51704959 has 2 divisors, whose sum is σ = 51704960. Its totient is φ = 51704958.

The previous prime is 51704957. The next prime is 51704971. The reversal of 51704959 is 95940715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51704959 - 2¹ = 51704957 is a prime.

Together with 51704957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51704957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25852479 + 25852480.

It is an arithmetic number, because the mean of its divisors is an integer number (25852480).

Almost surely, 2^51704959 is an apocalyptic number.

51704959 is a deficient number, since it is larger than the sum of its proper divisors (1).

51704959 is an equidigital number, since it uses as much as digits as its factorization.

51704959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 51704959 is about 7190.6160375868. The cubic root of 51704959 is about 372.5438508201.

The spelling of 51704959 in words is "fifty-one million, seven hundred four thousand, nine hundred fifty-nine".