51017671 has 4 divisors (see below), whose sum is σ = 51070144. Its totient is φ = 50965200.

The previous prime is 51017639. The next prime is 51017677. The reversal of 51017671 is 17671015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51017671 - 2⁵ = 51017639 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 (51017677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24750 + ... + 26731.

It is an arithmetic number, because the mean of its divisors is an integer number (12767536).

Almost surely, 2^51017671 is an apocalyptic number.

51017671 is a deficient number, since it is larger than the sum of its proper divisors (52473).

51017671 is an equidigital number, since it uses as much as digits as its factorization.

51017671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52472.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 51017671 is about 7142.6655388587. The cubic root of 51017671 is about 370.8858031326.

Adding to 51017671 its reverse (17671015), we get a palindrome (68688686).

It can be divided in two parts, 510 and 17671, that added together give a palindrome (18181).

The spelling of 51017671 in words is "fifty-one million, seventeen thousand, six hundred seventy-one".