51085671 has 16 divisors (see below), whose sum is σ = 83833344. Its totient is φ = 26946144.

The previous prime is 51085651. The next prime is 51085673. The reversal of 51085671 is 17658015.

It is not a de Polignac number, because 51085671 - 2⁶ = 51085607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51085673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93291 + ... + 93836.

It is an arithmetic number, because the mean of its divisors is an integer number (5239584).

Almost surely, 2^51085671 is an apocalyptic number.

51085671 is a deficient number, since it is larger than the sum of its proper divisors (32747673).

51085671 is a wasteful number, since it uses less digits than its factorization.

51085671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187150.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 51085671 is about 7147.4240814436. The cubic root of 51085671 is about 371.0505110159.

The spelling of 51085671 in words is "fifty-one million, eighty-five thousand, six hundred seventy-one".