51465677 has 2 divisors, whose sum is σ = 51465678. Its totient is φ = 51465676.

The previous prime is 51465649. The next prime is 51465679. The reversal of 51465677 is 77656415.

51465677 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 can be written as a sum of positive squares in only one way, i.e., 51423241 + 42436 = 7171^2 + 206^2 .

It is a cyclic number.

It is not a de Polignac number, because 51465677 - 2¹⁰ = 51464653 is a prime.

Together with 51465679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51465679) 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, 25732838 + 25732839.

It is an arithmetic number, because the mean of its divisors is an integer number (25732839).

Almost surely, 2^51465677 is an apocalyptic number.

It is an amenable number.

51465677 is a deficient number, since it is larger than the sum of its proper divisors (1).

51465677 is an equidigital number, since it uses as much as digits as its factorization.

51465677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 41.

The square root of 51465677 is about 7173.9582518997. The cubic root of 51465677 is about 371.9682715645.

The spelling of 51465677 in words is "fifty-one million, four hundred sixty-five thousand, six hundred seventy-seven".