51676767 has 12 divisors (see below), whose sum is σ = 75058984. Its totient is φ = 34259760.

The previous prime is 51676747. The next prime is 51676771. The reversal of 51676767 is 76767615.

51676767 is a `hidden beast` number, since 516 + 76 + 7 + 67 = 666.

51676767 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51676767 - 2⁸ = 51676511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51676727) 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 in 11 ways as a sum of consecutive naturals, for example, 14233 + ... + 17490.

Almost surely, 2^51676767 is an apocalyptic number.

51676767 is a deficient number, since it is larger than the sum of its proper divisors (23382217).

51676767 is a wasteful number, since it uses less digits than its factorization.

51676767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31910 (or 31907 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 51676767 is about 7188.6554375627. The cubic root of 51676767 is about 372.4761289749.

The spelling of 51676767 in words is "fifty-one million, six hundred seventy-six thousand, seven hundred sixty-seven".