51310471 has 8 divisors (see below), whose sum is σ = 55250640. Its totient is φ = 47472768.

The previous prime is 51310439. The next prime is 51310489. The reversal of 51310471 is 17401315.

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 51310471 - 2⁵ = 51310439 is a prime.

It is a super-3 number, since 3×51310471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51310411) 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, 24576 + ... + 26581.

It is an arithmetic number, because the mean of its divisors is an integer number (6906330).

Almost surely, 2^51310471 is an apocalyptic number.

51310471 is a deficient number, since it is larger than the sum of its proper divisors (3940169).

51310471 is a wasteful number, since it uses less digits than its factorization.

51310471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51233.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 51310471 is about 7163.1327643706. The cubic root of 51310471 is about 371.5939778440.

Adding to 51310471 its reverse (17401315), we get a palindrome (68711786).

The spelling of 51310471 in words is "fifty-one million, three hundred ten thousand, four hundred seventy-one".