51071371 has 8 divisors (see below), whose sum is σ = 55366304. Its totient is φ = 46828800.

The previous prime is 51071369. The next prime is 51071381. The reversal of 51071371 is 17317015.

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 51071371 - 2¹ = 51071369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51071341) 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, 11046 + ... + 14971.

It is an arithmetic number, because the mean of its divisors is an integer number (6920788).

Almost surely, 2^51071371 is an apocalyptic number.

51071371 is a deficient number, since it is larger than the sum of its proper divisors (4294933).

51071371 is a wasteful number, since it uses less digits than its factorization.

51071371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26181.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 51071371 is about 7146.4236510299. The cubic root of 51071371 is about 371.0158860589.

Adding to 51071371 its reverse (17317015), we get a palindrome (68388386).

The spelling of 51071371 in words is "fifty-one million, seventy-one thousand, three hundred seventy-one".