51075659 has 4 divisors (see below), whose sum is σ = 51104016. Its totient is φ = 51047304.

The previous prime is 51075649. The next prime is 51075671. The reversal of 51075659 is 95657015.

51075659 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.

It is a cyclic number.

It is not a de Polignac number, because 51075659 - 2⁴ = 51075643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51075649) 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, 11279 + ... + 15144.

It is an arithmetic number, because the mean of its divisors is an integer number (12776004).

Almost surely, 2^51075659 is an apocalyptic number.

51075659 is a deficient number, since it is larger than the sum of its proper divisors (28357).

51075659 is a wasteful number, since it uses less digits than its factorization.

51075659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28356.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 51075659 is about 7146.7236549345. The cubic root of 51075659 is about 371.0262693818.

The spelling of 51075659 in words is "fifty-one million, seventy-five thousand, six hundred fifty-nine".