51867677 has 2 divisors, whose sum is σ = 51867678. Its totient is φ = 51867676.

The previous prime is 51867671. The next prime is 51867679. The reversal of 51867677 is 77676815.

51867677 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., 27994681 + 23872996 = 5291^2 + 4886^2 .

It is a cyclic number.

It is not a de Polignac number, because 51867677 - 2⁴ = 51867661 is a prime.

Together with 51867679, 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 (51867671) 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, 25933838 + 25933839.

It is an arithmetic number, because the mean of its divisors is an integer number (25933839).

Almost surely, 2^51867677 is an apocalyptic number.

It is an amenable number.

51867677 is a deficient number, since it is larger than the sum of its proper divisors (1).

51867677 is an equidigital number, since it uses as much as digits as its factorization.

51867677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 47.

The square root of 51867677 is about 7201.9217574200. The cubic root of 51867677 is about 372.9342460647.

The spelling of 51867677 in words is "fifty-one million, eight hundred sixty-seven thousand, six hundred seventy-seven".