51071797 has 8 divisors (see below), whose sum is σ = 58788800. Its totient is φ = 43460064.

The previous prime is 51071777. The next prime is 51071821. The reversal of 51071797 is 79717015.

51071797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51071797 - 2¹⁵ = 51039029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51071717) 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 7 ways as a sum of consecutive naturals, for example, 25272 + ... + 27217.

It is an arithmetic number, because the mean of its divisors is an integer number (7348600).

Almost surely, 2^51071797 is an apocalyptic number.

It is an amenable number.

51071797 is a deficient number, since it is larger than the sum of its proper divisors (7717003).

51071797 is a wasteful number, since it uses less digits than its factorization.

51071797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52635.

The product of its (nonzero) digits is 15435, while the sum is 37.

The square root of 51071797 is about 7146.4534560858. The cubic root of 51071797 is about 371.0169176371.

The spelling of 51071797 in words is "fifty-one million, seventy-one thousand, seven hundred ninety-seven".