51171276 has 48 divisors (see below), whose sum is σ = 129102848. Its totient is φ = 15681600.

The previous prime is 51171271. The next prime is 51171299. The reversal of 51171276 is 67217115.

51171276 is nontrivially palindromic in base 5.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51171271) 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, 51141 + ... + 52131.

Almost surely, 2^51171276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51171276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64551424).

51171276 is an abundant number, since it is smaller than the sum of its proper divisors (77931572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51171276 is a wasteful number, since it uses less digits than its factorization.

51171276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1340 counting only the distinct ones).

The product of its digits is 2940, while the sum is 30.

The square root of 51171276 is about 7153.4100958913. The cubic root of 51171276 is about 371.2576535964.

The spelling of 51171276 in words is "fifty-one million, one hundred seventy-one thousand, two hundred seventy-six".