51306159 has 8 divisors (see below), whose sum is σ = 68514352. Its totient is φ = 34151040.

The previous prime is 51306149. The next prime is 51306193. The reversal of 51306159 is 95160315.

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

It is not a de Polignac number, because 51306159 - 2⁹ = 51305647 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 (51306139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 14919.

It is an arithmetic number, because the mean of its divisors is an integer number (8564294).

Almost surely, 2^51306159 is an apocalyptic number.

51306159 is a deficient number, since it is larger than the sum of its proper divisors (17208193).

51306159 is a wasteful number, since it uses less digits than its factorization.

51306159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26537.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 51306159 is about 7162.8317724207. The cubic root of 51306159 is about 371.5835682850.

The spelling of 51306159 in words is "fifty-one million, three hundred six thousand, one hundred fifty-nine".