51708771 has 6 divisors (see below), whose sum is σ = 74690460. Its totient is φ = 34472508.

The previous prime is 51708763. The next prime is 51708773. The reversal of 51708771 is 17780715.

It is not a de Polignac number, because 51708771 - 2³ = 51708763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51708773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2872701 + ... + 2872718.

It is an arithmetic number, because the mean of its divisors is an integer number (12448410).

Almost surely, 2^51708771 is an apocalyptic number.

51708771 is a deficient number, since it is larger than the sum of its proper divisors (22981689).

51708771 is a wasteful number, since it uses less digits than its factorization.

51708771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745425 (or 5745422 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 36.

The square root of 51708771 is about 7190.8811003937. The cubic root of 51708771 is about 372.5530059849.

The spelling of 51708771 in words is "fifty-one million, seven hundred eight thousand, seven hundred seventy-one".