51027847 has 8 divisors (see below), whose sum is σ = 56438816. Its totient is φ = 45829152.

The previous prime is 51027839. The next prime is 51027857. The reversal of 51027847 is 74872015.

It is a happy number.

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 51027847 - 2³ = 51027839 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 (51027827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52563 + ... + 53524.

It is an arithmetic number, because the mean of its divisors is an integer number (7054852).

Almost surely, 2^51027847 is an apocalyptic number.

51027847 is a deficient number, since it is larger than the sum of its proper divisors (5410969).

51027847 is a wasteful number, since it uses less digits than its factorization.

51027847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106137.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 51027847 is about 7143.3778424496. The cubic root of 51027847 is about 370.9104604913.

The spelling of 51027847 in words is "fifty-one million, twenty-seven thousand, eight hundred forty-seven".