51157677 has 4 divisors (see below), whose sum is σ = 68210240. Its totient is φ = 34105116.

The previous prime is 51157669. The next prime is 51157697. The reversal of 51157677 is 77675115.

51157677 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 not a de Polignac number, because 51157677 - 2³ = 51157669 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 (51157697) 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, 8526277 + ... + 8526282.

It is an arithmetic number, because the mean of its divisors is an integer number (17052560).

Almost surely, 2^51157677 is an apocalyptic number.

It is an amenable number.

51157677 is a deficient number, since it is larger than the sum of its proper divisors (17052563).

51157677 is a wasteful number, since it uses less digits than its factorization.

51157677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17052562.

The product of its digits is 51450, while the sum is 39.

The square root of 51157677 is about 7152.4595070507. The cubic root of 51157677 is about 371.2247628776.

The spelling of 51157677 in words is "fifty-one million, one hundred fifty-seven thousand, six hundred seventy-seven".