51027447 has 8 divisors (see below), whose sum is σ = 68278144. Its totient is φ = 33897528.

The previous prime is 51027433. The next prime is 51027461. The reversal of 51027447 is 74472015.

It is an interprime number because it is at equal distance from previous prime (51027433) and next prime (51027461).

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

It is not a de Polignac number, because 51027447 - 2¹¹ = 51025399 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 (51027497) 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, 29203 + ... + 30900.

It is an arithmetic number, because the mean of its divisors is an integer number (8534768).

Almost surely, 2^51027447 is an apocalyptic number.

51027447 is a deficient number, since it is larger than the sum of its proper divisors (17250697).

51027447 is a wasteful number, since it uses less digits than its factorization.

51027447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60389.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 51027447 is about 7143.3498444357. The cubic root of 51027447 is about 370.9094913174.

The spelling of 51027447 in words is "fifty-one million, twenty-seven thousand, four hundred forty-seven".