51347677 has 4 divisors (see below), whose sum is σ = 51739776. Its totient is φ = 50955580.

The previous prime is 51347669. The next prime is 51347683. The reversal of 51347677 is 77674315.

51347677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51347677 - 2³ = 51347669 is a prime.

It is a super-3 number, since 3×51347677³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51341677) 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 3 ways as a sum of consecutive naturals, for example, 195853 + ... + 196114.

It is an arithmetic number, because the mean of its divisors is an integer number (12934944).

Almost surely, 2^51347677 is an apocalyptic number.

It is an amenable number.

51347677 is a deficient number, since it is larger than the sum of its proper divisors (392099).

51347677 is a wasteful number, since it uses less digits than its factorization.

51347677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392098.

The product of its digits is 123480, while the sum is 40.

The square root of 51347677 is about 7165.7293418046. The cubic root of 51347677 is about 371.6837722850.

The spelling of 51347677 in words is "fifty-one million, three hundred forty-seven thousand, six hundred seventy-seven".