51000027 has 8 divisors (see below), whose sum is σ = 73230864. Its totient is φ = 31384608.

The previous prime is 50999999. The next prime is 51000041. The reversal of 51000027 is 72000015.

It is a happy number.

51000027 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 not a de Polignac number, because 51000027 - 2¹⁴ = 50983643 is a prime.

It is a super-3 number, since 3×51000027³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51000127) 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, 653808 + ... + 653885.

It is an arithmetic number, because the mean of its divisors is an integer number (9153858).

Almost surely, 2^51000027 is an apocalyptic number.

51000027 is a deficient number, since it is larger than the sum of its proper divisors (22230837).

51000027 is a wasteful number, since it uses less digits than its factorization.

51000027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307709.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 51000027 is about 7141.4303189207. The cubic root of 51000027 is about 370.8430423695.

The spelling of 51000027 in words is "fifty-one million, twenty-seven", and thus it is an aban number and an uban number.