51027647 has 8 divisors (see below), whose sum is σ = 55719120. Its totient is φ = 46344960.

The previous prime is 51027637. The next prime is 51027649. The reversal of 51027647 is 74672015.

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 51027647 - 2⁴ = 51027631 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 (51027649) 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, 18383 + ... + 20975.

It is an arithmetic number, because the mean of its divisors is an integer number (6964890).

Almost surely, 2^51027647 is an apocalyptic number.

51027647 is a deficient number, since it is larger than the sum of its proper divisors (4691473).

51027647 is a wasteful number, since it uses less digits than its factorization.

51027647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 51027647 is about 7143.3638434564. The cubic root of 51027647 is about 370.9099759050.

The spelling of 51027647 in words is "fifty-one million, twenty-seven thousand, six hundred forty-seven".